CN110250264A - A kind of salami lipid antioxidation method - Google Patents

A kind of salami lipid antioxidation method Download PDF

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CN110250264A
CN110250264A CN201910638614.5A CN201910638614A CN110250264A CN 110250264 A CN110250264 A CN 110250264A CN 201910638614 A CN201910638614 A CN 201910638614A CN 110250264 A CN110250264 A CN 110250264A
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salami
testa tritici
dry
fermentation
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刘英丽
王静
万真
孙宝国
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Beijing Technology and Business University
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00Preservation or chemical ripening of fruit or vegetables
    • A23B7/14Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
    • A23B7/153Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
    • A23B7/154Organic compounds; Microorganisms; Enzymes
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L13/00Meat products; Meat meal; Preparation or treatment thereof
    • A23L13/70Tenderised or flavoured meat pieces; Macerating or marinating solutions specially adapted therefor
    • A23L13/72Tenderised or flavoured meat pieces; Macerating or marinating solutions specially adapted therefor using additives, e.g. by injection of solutions
    • A23L13/74Tenderised or flavoured meat pieces; Macerating or marinating solutions specially adapted therefor using additives, e.g. by injection of solutions using microorganisms or enzymes
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/40Colouring or decolouring of foods
    • A23L5/41Retaining or modifying natural colour by use of additives, e.g. optical brighteners
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

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Abstract

A kind of salami lipid antioxidation method, belongs to Food Science/technical field of meat science.The present invention adds Testa Tritici extract in salami, and additive amount is 25-27g/kg according to salami quality meter.The Testa Tritici extract contains ferulic acid, arabinose and xylose;Wherein the content of the opposite Testa Tritici extract of ferulic acid is 10-12mg/g.The present invention effectively reduces sausage lipid oxidation degree, improves sausage color to a certain extent, can preferably control salami quality by the Testa Tritici extract rich in ferulic acid of the addition Rational Dosage in pork salami.

Description

A kind of salami lipid antioxidation method
Technical field
The present invention relates to a kind of salami lipid antioxidation methods, belong to Food Science/meat science neck Domain.
Background technique
Salami is a kind of unique flavor, nutritive value comprehensively and has the fermentation meat product of long quality guarantee period, exploitation The Sa rummy for being suitble to domestic consumer to eat is produced, the new direction of domestic meat products development has been increasingly becoming.Fat and albumen The oxidation of matter is in addition to microbial contamination to the maximum factor of pork salami qualitative effects.Fat is used as pork Sa rummy The important composition ingredient of sausage product, it will affect sausage tenderness and succulence, and the slight oxidation of fat can produce volatility Compound facilitates fragrance and flavour characteristic enhancing.However, the fat content also lipid oxidation with higher degree during storage Correlation, and it is rancid due to caused by lipid oxidation, cause consumer to decline the acceptability of pork sausage.Meanwhile fat Oxidation also will lead to the degradation of fat and protein, to influence the flavor of product, quality and color, and then influence the battalion of product Support value, edible value, commercial value and safety.
Appropriate safe and efficient antioxidant is added in salami can effectively inhibit fat oxidation.At present Most of antioxidant used in salami is synthetized oxidation preventive agent such as sodium isoascorbate, sodium citrate etc., however, It pursues health, advocate a kind of trend that wholefood has become the modern life, people are to using chemical synthesis antioxidant more next It is uneasy, it is particularly important to find the natural that suitably can be used in salami.
Wheat is one of three big cereal, and annual output reaches the one third of all grain-production total amounts in the world. There are a large amount of phenolic acid compounds in Wheat cell wall, and the content that wherein ferulic acid occupies is most.These hydroxy cinnamates Acid shows preferable anticancer and antioxidant effect in vitro experiment, also has in the diet containing wheat bran to the control of disease Good inhibiting effect.In addition, existing simultaneously a large amount of oligosaccharide substances in wheat bran, extraneous thorn is protected cells from Swash, while also there is preferable antioxidation.Using wheat processing by-product --- wheat bran is further extracted as raw material, is made Ferulic acid and oligosaccharide combine, and extract has the main functional characteristics of both active materials of oligosaccharide and ferulic acid simultaneously, Has stronger oxidation resistance.
Summary of the invention
The purpose of the present invention is providing a kind of salami lipid antioxidation method to overcome above-mentioned shortcoming, It can improve sausage color to a certain extent, preferably control salami quality.
Technical solution of the present invention prepares Testa Tritici extract by raw material of wheat bran, extracts through the qualitative analysis wheat bran Object mainly includes ferulic acid, arabinose and xylose, and wherein the relative amount of ferulic acid is 11.1mg/g.It is fragrant in pork Sa rummy The Testa Tritici extract (25-27g/kg) rich in ferulic acid of Rational Dosage is added in intestines, and passes through the TBARS to salami The indexs such as value, color are measured and confirm in conjunction with sensory evaluation: Testa Tritici extract is added in pork salami It can effectively reduce sausage lipid oxidation degree, improve sausage color to a certain extent, preferably control salami quality.
A kind of salami lipid antioxidation method, adds Testa Tritici extract in salami, and additive amount is pressed It is 25-27g/kg according to salami quality meter.
The salami lipid antioxidation method, the Testa Tritici extract contain ferulic acid, arabinose and xylose; Wherein the content of the opposite Testa Tritici extract of ferulic acid is 10-12mg/g.
The salami lipid antioxidation method, the Testa Tritici extract the preparation method is as follows:
(1) after wheat bran pulverizing and sieving, being placed in high-pressure sterilizing pot inactivates endogenous enzyme;Sequentially add heatproof alphalise starch Precipitating is obtained by filtration after enzyme, alkali protease, purification carbohydrase successive reaction;Post-processing vacuum drying obtains the insoluble meals of wheat bran Eat fiber;
(2) wheat bran insoluble diedairy fiber is weighed, the xylan enzyme solution being configured to acetate buffer solution is stirred to react, and is carried out Zytase inactivation, centrifuging and taking supernatant are filtered to obtain filtrate, isolate and purify elution, and collect eluent, and concentration is collected Testa Tritici extract is prepared under the conditions of vacuum freeze drying in liquid.
The formula of the salami is as follows in parts by mass: 65-75 parts of pig tenterloin, 25-35 parts of pig back fat, and glucose 0.1-0.3 parts, 0.2-0.4 parts of sucrose, 0.2-0.4 parts of black pepper, 0.2-0.4 parts of white pepper, 0.1 part of garlic powder, salt 3-4 Part.
Fresh meat is cut by formula plus is cut with material, freezing, low temperature and mixes, additive Testa Tritici extract and leavening is added Afterwards, mixing filling fermentation drying, obtains the oxidation resistant salami of lipid.
The fermentation drying is divided into 8 stages, specific as follows: the 1st stage, in the dry 20-24h of 22-25 DEG C of fermentation, humidity It is 80%;2nd stage, in the dry 20-24h of 20-25 DEG C of fermentation, humidity 65%;3rd stage, in 18 DEG C of -20 DEG C of fermentation dryings 18-24h, humidity 67%;4th stage, in the dry 20-22h of 18-20 DEG C of fermentation, humidity 69%;5th stage, at 15-18 DEG C Ferment dry 18-20h, humidity 71%;6th stage, in the dry 20-24h of 15-18 DEG C of fermentation, humidity 73%;7th stage, The dry 20-22h of 12-14 DEG C of fermentation, humidity 76%;It is 8th stage, dry to maturation, humidity 37% in 10-12 DEG C of fermentation.
Beneficial effects of the present invention: the present invention by pork salami add Rational Dosage be rich in ferulic acid Testa Tritici extract, effectively reduce sausage lipid oxidation degree, improve sausage color to a certain extent, can preferably control Salami quality.
Detailed description of the invention
Fig. 1 is the uv scan figure of ferulic acid.
Fig. 2 is the uv absorption spectra of Testa Tritici extract.
Fig. 3 is the high-efficient liquid phase chromatogram of generation substance after ferulic acid, Testa Tritici extract and alkaline hydrolysis Testa Tritici extract.A, Ah Wei's acid;B, Testa Tritici extract;C, alkaline hydrolysis Testa Tritici extract.
Fig. 4 is the high-efficient liquid phase chromatogram of hydrolyzation sample after arabinose, xylose and trifluoroacetic acid are handled.
A, arabinose;B, xylose;C, trifluoroacetic acid.
Fig. 5 is Testa Tritici extract infrared absorpting light spectra.
Fig. 6 is the change curve of TBARS value during salami is mature.
Fig. 7 is the chromatic value change curve in salami maturation.
Analyses Methods for Sensory Evaluation Results column diagram when Fig. 8 is salami maturation.
Specific embodiment
The preparation of the oxidation resistant salami of 1 lipid of embodiment
Preparing for Testa Tritici extract is as follows:
(1) prepared by wheat bran insoluble diedairy fiber: after 100g wheat bran is pulverized and sieved, being placed in high-pressure sterilizing pot and reacts 60min inactivates endogenous enzyme.It deionized water 1000mL is added is stirred continuously at 60 DEG C and allow its abundant water swelling, will mixed The pH of object is adjusted to 7.5, and 7.5mL heatproof alpha-amylase is then added, and 95 DEG C of effects are lower to stir 40min.60 are cooled to suspension DEG C, then its pH value is adjusted to 7.5, alkali protease 3.0mL is added, reaction 30min is stirred continuously at 60 DEG C, uses 325mmol/ PH is adjusted to 4.5 by the HCl of L, adds purification carbohydrase 3.5mL reaction 30min.Centrifugal filtration is precipitated after reaction, Washed with hot distilled water until seeing without obvious suspended matter, then respectively with ethyl alcohol and acetone (V:V=95:1) rinsing until supernatant without Obvious yellow, centrifugal filtration obtain sediment, will be dried in vacuo under the conditions of obtained sediment in a vacuum drying oven 40 DEG C For 24 hours, the product obtained under vacuum drying is the insoluble diedairy fiber sample of wheat bran.
(2) prepared by Testa Tritici extract: weighing the wheat bran insoluble diedairy fiber of 5g preparation, adds and be with concentration The 1% xylan enzyme solution 100mL that the acetate buffer solution of 50mmol/L is configured to is sufficiently stirred concussion and is uniformly placed in 60 Sufficiently reaction is protected from light in DEG C water bath with thermostatic control for 24 hours.Zytase inactivation is carried out after the reaction was completed, by reaction solution in triangular pyramidal bottle It is placed in effect 10min under 100 DEG C of water bath conditions to inactivate zytase, obtained solution is then subjected to centrifuging and taking supernatant It is filtered to obtain filtrate, reuses XAD-2 macroporous resin column and isolated and purified, successively use 3 times of bodies of macroporous resin column material The volume fraction methanol aqueous solution for being 50% of long-pending water, 3 times of column Material products and the volume fraction of 2 times of column Materials product are 100% Methanol solution is eluted, and collecting eluent is the liquid obtained when the elution of 50% methanol aqueous solution, then the collection liquid that will be obtained Concentration collection is carried out using Rotary Evaporators to be placed in -20 DEG C of refrigerators, is finally prepared under the conditions of vacuum freeze drying Sample, and be placed in -20 DEG C of refrigerators and be kept in dark place.
(3) Testa Tritici extract qualitative analysis is as follows: carrying out paper chromatography, ultraviolet absorption spectroscopy (figure to Testa Tritici extract 2), efficient liquid phase chromatographic analysis (Fig. 3) and infrared spectrum analysis are qualitative to its, mainly include ferulic acid, arabinose and xylose, Wherein the relative amount of ferulic acid is 11.1mg/g.
The ultraviolet spectral analysis of Testa Tritici extract: the ferulic acid of phase homogenous quantities and the sample powder of preparation are weighed in small beaker In, it is 200-400nm in ultraviolet wavelength that prepared isometric phosphate buffer solution stirring, which is added, and shakes up, which dissolves it sufficiently, When to sample solution carry out uv scan.It is 200- that Fig. 1 and Fig. 2, which is ferulic acid and Testa Tritici extract in wave-length coverage, Uv scan figure when 400nm, as seen from the figure: ferulic acid and Testa Tritici extract in 200-400nm wave-length coverage most Big absorbing wavelength be it is different, the maximum absorption wavelength of ferulic acid is and the maximum absorption wavelength of Testa Tritici extract in 286nm It is 325nm, it is possible thereby to infer the ferulic acid in sample with the presence of esterification.
The HPLC of Testa Tritici extract is analyzed: being taken 0.01g Testa Tritici extract powder, is settled to 10mL with distilled water, taken Then the NaOH solution of 1mL 0.4mol/L, rotation concussion is added in the centrifuge tube of 5mL in 1mL sample solution into centrifuge tube It mixes, adds prepared H after being protected from light darkroom reaction 2h3PO4Solution 1.5mL terminates sample hydrolysis.It is micro- with 0.45 μm Hole filter membrane filters reaction solution, carries out efficient liquid to the reaction solution after crossing film using Japanese Shimadzu Corporation's high performance liquid chromatograph Analysis of hplc, the liquid-phase chromatographic column of detection are C18(Inertsil ODS-SP, C18,5.0 μm, 4.6 mm × 150mm Column, C/N 5020-02745, S/N 2FI92218), column temperature: 30 DEG C, mobile phase solution uses methanol (V): water (V): Acetic acid (V)=50: 50: 0.5, flow rate of mobile phase 0.6mL/min, sample injection volume are 10 μ L, are carried out with UV detector Detection, is detected under 320nm wavelength.By the retention time and ferulic acid of the sample solution phasor chromatographic peak obtained after hydrolysis The retention time of standard items chromatographic peak compares.By above-mentioned basic hydrolysis treated sample solution using ethyl acetate solution into Row extraction processing comes out the ferulic acid extraction and separation contained in solution, then shifts remaining reaction solution from separatory funnel Rotary evaporation concentration is carried out into Rotary Evaporators flask, and concentrate is transferred in small beaker will using vacuum freeze drier Reaction solution is dry, 2mL 2mol/L trifluoroacetic acid solution is added into small beaker, then react 3h under the conditions of 105 DEG C of temperature, will Reaction solution is crossed 0.45 μm of dedicated miillpore filter of liquid phase and is filtered, and HPLC analysis is carried out, and chromatography detecting instrument is Japanese Shimadzu The high performance liquid chromatograph of company, chromatographic column are nh 2 column (7.8 × 300mm), and filler particle size is 5 μm, column temperature: 30 DEG C, detection Device temperature: 30 DEG C, mobile phase is acetonitrile (V): water (V)=80:20, and flow velocity: 0.8mL/min, sample injection volume are 10 μ L.
After ferulic acid, Testa Tritici extract and alkaline hydrolysis Testa Tritici extract generate substance high-efficient liquid phase chromatogram as shown in figure 3, (a) high-efficient liquid phase chromatogram of figure is the testing result of ferulic acid standard items, it is recognised that the phase of ferulic acid from the figure It is 4.0min to retention time;The efficient of Testa Tritici extract when not hydrolyzing by NaOH is shown in Fig. 3 (b) testing result Liquid-phase chromatographic analysis figure, it follows that there is no there is trip in the Testa Tritici extract sample extracted through macroporous resin column From ferulic acid, illustrate with distilled water and methanol solution in macroreticular resin elution process by unbonded free Ah The elution of Wei's acid is clean;It is Testa Tritici extract after NaOH solution alkaline hydrolysis that efficient liquid phase chromatographic analysis figure, which is shown, in Fig. 3 (c) As a result, occurring two main chromatographic peaks in Fig. 3 (c) chromatogram, the retention time of one of chromatographic peak is for analysis 4.0min, it is consistent with the retention time of ferulic acid in Fig. 3 (a), therefore it is concluded that the chromatographic peak occurred in Fig. 3 (c) For the chromatographic peak of ferulic acid.By analysis chart 3 (a), (b) with (c) as a result, may infer that has asafoetide acyl in prepared sample Base exists, and sample purity is higher, and the method for extracting and preparing sample is relatively rationally effective.
Fig. 4 is arabinose (a), xylose (b) and Testa Tritici extract (c) using the obtained solution after NaOH basic hydrolysis, It reuses after ethyl acetate solution carries out extraction processing and extracts away the ferulic acid in solution completely, reuse trifluoroacetic acid water Efficient liquid phase chromatographic analysis figure after solution, from figure we it can be concluded that, the relative retention time of arabinose is 7.19min, The relative retention time of xylose is 6.41min, and Testa Tritici extract is shown in Fig. 4 (c) after trifluoroacetic acid solution hydrolyzes The relative retention time of the efficient liquid phase chromatographic analysis figure of the substance of generation, most obvious two chromatographic peaks shown in figure is respectively The liquid phase analysis result and Fig. 4 (a) arabinose and Fig. 4 (b) xylose mark of 6.44min and 7.24min, Fig. 4 (c) sample solution The relative retention time of the liquid-phase chromatographic analysis result of quasi- product solution is consistent, it is known that in the sample solution after trifluoroacetic acid hydrolysis There are arabinoses and xylose.Therefore, it can be said that in the bright Testa Tritici extract sample prepared by above-mentioned experiment research Arabinose residues and xylose residues are existed simultaneously.
The infrared spectrum analysis of Testa Tritici extract: suitable sample powder prepared is taken, is placed on infrared On sample well in the sample detection plate of spectrum detection instrument, it will test head alignment sample powder and place, instrument is set after installing Parameter is 500 ~ 4000cm in wave number-1IR spectrum scanning is carried out in range.Fig. 5 is the infrared spectroscopy point of Testa Tritici extract sample Full scan figure is analysed, it may be seen that the main characteristic absorption peak of Testa Tritici extract is respectively as follows: in 3200- from this figure 3700cm-1The characteristic absorption peak that place occurs is the O-H stretching vibration of saccharide residue and formed, the characteristic absorption of the angle vibration of C-H It peak can be in 1200-1400cm-1See that above infrared these absorption peaks detected are the distinctive suctions of glucide in place Receive peak.In 989cm-1The characteristic absorption peak at place is the characteristic absorption peak of aralino, in 807cm-1Characteristic absorption peak be The characteristic absorption peak of furanose derivative, it is possible thereby to illustrate that there are aralinos in prepared sample, and it Form, which exists, to be connected with No. 3 positions with pyranoid form xylose residues.And in 1732cm-1The absorption peak at place is that the feature of ester bond is inhaled Receive peak, 1635cm-1And 1601cm-1The characteristic absorption peak that place occurs is the absorption peak of phenyl ring and conjugation ester bond.By above point Analysis, it is concluded that extracted Testa Tritici extract sample is that arabinose residues are connected with No. 3 positions of xylose residues, and With the presence of conjugation ester bond in sample.
The composition analysis of Testa Tritici extract: it weighs 1g sample and is placed in triangular pyramidal bottle, use 2,4- dinitrosalicylic Content of reducing sugar in sour (DNS) method test sample;1g sample powder is weighed again to be placed in triangular pyramidal bottle and draw 2mL 1mol/L H2SO4Solution is added in triangular pyramidal bottle, is then uniformly mixed sample with solvent solution and is placed in 100 DEG C of water-bath items Reaction is fully hydrolyzed 3h under part, reuses the detection of 2,4- dinitrosalicylic acid (DNS) method by H2SO4Wheat is detected after being fully hydrolyzed Total sugar content in bran extract sample, and calculated result.By making ferulic acid standard curve, examined using high performance liquid chromatography The relative amount of ferulic acid is 11.1mg/g in Testa Tritici extract after measuring hydrolysis;Testa Tritici extract is detected using DNS method Middle reduced sugar and the total reducing sugar relative amount after sulphuric acid hydrolysis sample are 132.2mg/g and 430.2mg/g.By HIGH PRESSURE TREATMENT and It releases ferulic acid and oligosaccharide in wheat bran sufficiently, mainly includes asafoetide in the sample of preparation Acid, arabinose and xylose.
The formula of salami: pork (pig tenterloin: pig back fat=7:3);Glucose 0.2% is added by Meat meter, Sucrose 0.3%, black pepper 0.3%, white pepper 0.3%, garlic powder 0.1%, salt 3.5%.The wheat bran for separately adding 27g/kg extracts Object.
According to fresh meat, cutting, freezing (- 20 DEG C, 2h), cut mix (low temperature), be mixed into additive (Testa Tritici extract), inoculation hair Ferment agent, mixing, filling, fermentation and dry processing step prepare salami.
Fermentation drying after the completion of filling is divided into 8 stages, specific as follows: the 1st stage, wet in the dry 22h of 22 DEG C of fermentations Degree is 80%;2nd stage, in the dry 20h of 20 DEG C of fermentations, humidity 65%;In 3rd stage, in the dry 18h of 19 DEG C of fermentations, humidity is 67%;4th stage, in the dry 22h of 18 DEG C of fermentations, humidity 69%;5th stage, in the dry 18h of 17 DEG C of fermentations, humidity 71%; 6th stage, in the dry 21h of 15 DEG C of fermentations, humidity 73%;7th stage, in the dry 21h of 14 DEG C of fermentations, humidity 76%;8th rank Section, it is dry to maturation, humidity 37% in 11 DEG C of fermentations.
The measurement of each stage of ripeness fat oxidation degree of 2 salami of embodiment
(1) production of standard curve: accurately weigh 0.2000g triethyl phosphate TEP is settled to 1000mL in volumetric flask, i.e., For 200mg/L TEP standard solution, then it is diluted to the TEP standard solution of 2mg/L.In 15.0mL test tube, it is separately added into 0, the 2mg/L TEP standard solution of 0.8,1.6,2.4,3.2,4.0,5.0mL, complements to 5.0mL with deionized water, then respectively adds The 0.02mol/L thiobarbituricacidα- TBA solution of 5.0mL, boiling water bath 30min, flowing water cools down 10min, Yu Bochang after taking-up Absorbance is measured at 532nm, draws standard curve according to acquired results.
(2) it the measurement of sample TBARS value: weighs embodiment 1 and prepares resulting chopping sample 5g in 50mL centrifuge tube, add Enter the trichloroacetic acid that the volumetric concentration of 25mL EDTA-2Na containing 0.1g is 7.5%, in 4 after fast homogeneous 1min under condition of ice bath DEG C, 1300rpm is centrifuged 15min, takes 2mL supernatant in 10mL centrifuge tube after filtering, adds the sulphur of the 0.02mo1/L of 2mL For barbiturates (TBA), water-bath (95 DEG C, 30min) after mixing, flowing water is cooled to room temperature after the completion of water-bath, is measured at 532nm Absorbance value draws curve according to acquired results.
(3) interpretation of result: TBARS value is mainly the secondary species (such as malonaldehyde) for passing through and generating in measurement oxidation process It measures to assess the degree of oxidation of sausage in process, is the important indicator for measuring fat oxidation degree of metamorphism.
As shown in fig. 6, the TBARS value of each group is gradually increased with the drying and ripening of sausage, illustrate the oxidation journey of fat Degree is deepened.At first 13 days, the TBARS value difference of each group was not different significant, at the 20th day when sausage maturation, control group TBARS value significantly increases, this may be since in the sausage dry phase, the decomposition of lipid is accelerated, so that the oxygen of unsaturated fatty acid Change and accelerates.And the salami for adding 27g/kg Testa Tritici extract does not go out in 26 days lactones TBARS values of its fermenting-ripening It is now obvious to rise, and fat oxidation degree is substantially less than control group at the end of maturation.
Influence of 3 Testa Tritici extract of embodiment to salami color
Meat products color embodies the freshness and superiority and inferiority quality of meat products, is the important indicator of measurement meat products quality, and Influence the important evidence of consumer's selection.The present invention has studied influence of the Testa Tritici extract to salami color simultaneously.
5 different locations for removing the sausage of casing cut the sausage with a thickness of 1cm, and every group 3 parallel fragrant Intestines.It is measured using CM-600d1 type color difference meter, first with measuring after instrument carries blank and blackboard is corrected, records a*、b* Value.Sausage is taken to carry out the measurement of chromatic value in the fresh-cut face in the different stages of ripeness respectively, wherein a*It indicates from red to green Range, b*Indicate the range from yellow to blue.In order to reduce b*It is worth the interference when evaluating sausage red, therefore uses a*/ b*Mode evaluate color variation.
From figure 7 it can be seen that with the drying and ripening of sausage, a of each group*/b*Value is before fermentation phase and maturity period, mid-term It is in rising trend, this may be because of ferment sausage dehydration within this time, to improve the concentration of myoglobins, this meeting Improve a*Value, meanwhile, or sodium nitrite is converted into NO under the action of the microbial enzyme of part, is formed in conjunction with myoglobins Cherry nitrosomyoglobin, so that a*It increases.In the mature later period, sausage contained humidity is fewer and fewer, and coloring matter is dense Contracting, so that a*Rising slows down or declines.It can be obtained by Fig. 7, add Testa Tritici extract group when sausage maturation is 26 days a*/b*Value will be significantly higher than control group (p < 0.05), it may be possible to since Testa Tritici extract bacteriostasis inhibits the life of spoilage organisms It is long, it is more conducive to the conversion that lactic acid bacteria etc. accelerates nitrous myoglobins as dominant microflora.
4 salami sensory evaluation of embodiment analysis
18 people (9 male 9 female) that choosing has Majors of Food background carry out sensory evaluation.Respectively by color, color homogeneity, at Ripe fragrance, tart flavour, mouthfeel and whole preference degree are evaluated, 5 points of evaluation methods processed, sensory evaluation marking table such as 1 institute of table Show, evaluation personnel can also beat score in two score sections.Respectively from color and uniformity, fragrance, tart flavour, coherency with And sensory evaluation has been carried out in terms of whole preference degree, the analysis of front can be seen that different leavenings influences not the property of sausage One.
1 sensory evaluation of table marking table
The whole preference degree of comprehensive color, uniformity, fragrance, tart flavour and coherency five indices to different grouping salami Sensory evaluation is carried out, as a result as shown in Figure 8.The salami entirety preference degree for adding 27g/kg Testa Tritici extract is significantly high In control group (p < 0.05).

Claims (6)

1. a kind of salami lipid antioxidation method adds it is characterized in that: adding Testa Tritici extract in salami Dosage is 25-27g/kg according to salami quality meter.
2. salami lipid antioxidation method as described in claim 1, it is characterized in that: the Testa Tritici extract contains asafoetide Acid, arabinose and xylose;Wherein the content of the opposite Testa Tritici extract of ferulic acid is 10-12mg/g.
3. salami lipid antioxidation method as described in claim 1, it is characterized in that the preparation of the Testa Tritici extract Method is as follows:
(1) after wheat bran pulverizing and sieving, being placed in high-pressure sterilizing pot inactivates endogenous enzyme;Sequentially add heatproof alphalise starch Precipitating is obtained by filtration after enzyme, alkali protease, purification carbohydrase successive reaction;Post-processing vacuum drying obtains the insoluble meals of wheat bran Eat fiber;
(2) wheat bran insoluble diedairy fiber is weighed, the xylan enzyme solution being configured to acetate buffer solution is stirred to react, and is carried out Zytase inactivation, centrifuging and taking supernatant are filtered to obtain filtrate, isolate and purify elution, and collect eluent, and concentration is collected Testa Tritici extract is prepared under the conditions of vacuum freeze drying in liquid.
4. salami lipid antioxidation method as described in claim 1, it is characterized in that the formula of the salami It is as follows in parts by mass: 65-75 parts of pig tenterloin, 25-35 parts of pig back fat, 0.1-0.3 parts of glucose, 0.2-0.4 parts of sucrose, black Hu 0.2-0.4 parts of green pepper, 0.2-0.4 parts of white pepper, 0.1 part of garlic powder, 3-4 parts of salt.
5. salami lipid antioxidation method as claimed in claim 4, it is characterized in that: cutting, adding to fresh meat by formula It is cut with material, freezing, low temperature after mixing, additive Testa Tritici extract and leavening being added, mixing filling fermentation drying obtains lipid Oxidation resistant salami.
6. salami lipid antioxidation method as claimed in claim 5, it is characterized in that fermentation drying is divided into 8 ranks Section, specific as follows: the 1st stage, in the dry 20-24h of 22-25 DEG C of fermentation;2nd stage, in the dry 20-24h of 20-25 DEG C of fermentation; 3rd stage, in the dry 18-24h of 18 DEG C of -20 DEG C of fermentations;4th stage, in the dry 20-22h of 18-20 DEG C of fermentation;5th stage, The dry 18-20h of 15-18 DEG C of fermentation;6th stage, in the dry 20-24h of 15-18 DEG C of fermentation;It is 7th stage, dry in 12-14 DEG C of fermentation Dry 20-22h;It is 8th stage, dry to maturation in 10-12 DEG C of fermentation.
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