CN105660837A - Fresh keeping agent for fresh-cut lotus roots and use method of fresh keeping agent - Google Patents
Fresh keeping agent for fresh-cut lotus roots and use method of fresh keeping agent Download PDFInfo
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- CN105660837A CN105660837A CN201610006014.3A CN201610006014A CN105660837A CN 105660837 A CN105660837 A CN 105660837A CN 201610006014 A CN201610006014 A CN 201610006014A CN 105660837 A CN105660837 A CN 105660837A
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/154—Organic compounds; Microorganisms; Enzymes
- A23B7/155—Microorganisms; Enzymes; Antibiotics
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/154—Organic compounds; Microorganisms; Enzymes
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Abstract
The invention provides a fresh keeping agent for fresh-cut lotus roots and a use method of the fresh keeping agent. The use method of the fresh keeping agent comprises the following steps of step I, performing pretreatment on the lotus roots to be kept fresh; step II, preparing the fresh keeping agent for the fresh-cut lotus roots, which is prepared from the following components in proportion: 0.05-0.12%W/V of glucose oxidase, 0.01-0.08%W/V of cysteine, 0.08-0.15%W/V of ascorbic acid, 0.05-0.1%W/V of calcium chloride and 1.5-2.5%W/V of table salt, and macerating the pretreated lotus roots to be kept fresh in the fresh keeping agent for the fresh-cut lotus roots for 1-3 minutes; and step III, taking out the lotus roots to be kept fresh, airing the lotus roots to be kept fresh under room temperature conditions, putting the aired lotus roots to be kept fresh in packing boxes or packing bags, and performing vacuum packing. According to the fresh keeping agent disclosed by the invention, the fresh-cut lotus roots are restrained from generating brown stains, the storage and the fresh keeping of the fresh-cut lotus roots are realized, the original texture, the original nutrition and the original flavor of the fresh-cut lotus roots can be well maintained, and the storage period of the fresh-cut lotus roots is as long as 15 days.
Description
Technical field
The invention belongs to Rhizoma Nelumbinis preservation and freshness field, particularly to a kind of fresh-cut lotus root antistaling agent and using method thereof.
Background technology
Fresh-cut fruit and vegetable refers to fresh fruit of vegetables for raw material, instant or namely use fruit and vegetable product after a series of process such as classified, cleaning, trimming, peeling, cutting, fresh-keeping, packaging. Fresh-cut fruit and vegetable at utmost remains the nutritional labeling of fruit and vegerable because of it, and instant, quick, is increasingly subject to liking of consumer. But, owing to the preservation technique of fresh-cut fruit and vegetable falls behind so that the kind of China's fresh-cut fruit and vegetable is single, selects limited, and market share is low.
Rhizoma Nelumbinis originates in India and Southern Asia, at existing more than the 3000 year cultivation history of China, is the main meals kind of China resident, is also buffet indispensability kind. Research proves, Rhizoma Nelumbinis contains substantial amounts of starch, protein, vitamin, fat, carbohydrate and the mineral nitrogen thing such as calcium, ferrum, has high nutritive value. But Rhizoma Nelumbinis, after cutting, brown stain very easily occurs, brown stain can reduce the nutritive value of Rhizoma Nelumbinis, affects the cooking local flavor of Rhizoma Nelumbinis, therefore provides fresh-cut lotus root kind more difficult. The fresh-cut preservation method of Rhizoma Nelumbinis mainly includes scalding a series of process steps such as dye, quick-freezing, color fixative, vacuum packaging, complicated operation, the exploitation of restriction fresh-cut lotus root product at present. There is provided a kind of efficiently, the method for storing and refreshing of fresh-cut lotus root is significant to abundant fresh-cut lotus root kind easily and efficiently.
Summary of the invention
It is an object of the invention to solve at least the above or defect, and the advantage that at least will be described later is provided.
It is a still further object of the present invention to provide a kind of fresh-cut lotus root antistaling agent, its main component is edible rank, namely can carry out fresh-keeping to Rhizoma Nelumbinis by high degree, again will not on the fresh-cut lotus root after fresh-keeping residual harmful composition.
Another object of the present invention is to provide the method using the fresh-keeping fresh-cut lotus root of fresh-cut lotus root antistaling agent, the present invention can suppress brown stain of cut lotus root, achieve the preservation and freshness of fresh-cut lotus root, can keeping original quality of fresh-cut lotus root, nutrition and local flavor preferably, the storage period of fresh-cut lotus root was up to 15 days.
In order to realize these purposes according to the present invention and further advantage, it is provided that a kind of fresh-cut lotus root antistaling agent and using method thereof, including:
Described fresh-cut lotus root antistaling agent includes: glucoseoxidase, cysteine, ascorbic acid, calcium chloride, Sal and water. glucoseoxidase is mainly used in removing the oxygen of fresh-cut lotus root facet, cysteine has the function preventing Systemic aging, the reproducibility that ascorbic acid has can eliminate and cause the bad nitroso-group become of fresh-cut lotus root and old and feeble free radical, glucoseoxidase, cysteine and ascorbic acid are configured to fresh-cut lotus root antistaling agent can effectively prevent fresh-cut lotus root envenomation, simultaneously, fresh-cut lotus root can produce ethylene and the carbon dioxide of gaseous state in the process of storage, the ethylene of these gaseous states and carbon dioxide can accelerate the rotten of fresh-cut lotus root, therefore in above-mentioned raw materials, add the calcium oxide that can remove ethylene and carbon dioxide, Sal and calcium oxide is utilized to extend the fresh keeping time of fresh-cut lotus root. what utilize the antioxidation of glucoseoxidase, cysteine and ascorbic acid and calcium chloride and Sal in this fresh-cut lotus root antistaling agent extends fresh-keeping effect, suppress the brown stain of fresh-cut lotus root surface, retain the quality of fresh-cut lotus root, fresh-cut lotus root fresh keeping time is extended to 15 days.
In preferably described fresh-cut lotus root antistaling agent, the proportioning of described fresh-cut lotus root antistaling agent is: glucoseoxidase 0.05～0.12%W/V, cysteine 0.01～0.08%W/V, ascorbic acid 0.08～0.15%W/V, calcium chloride 0.05～0.1%W/V, Sal 1.5～2.5%W/V.
Preferably, in described fresh-cut lotus root antistaling agent, the proportioning of described fresh-cut lotus root antistaling agent is: glucoseoxidase 0.07%W/V, cysteine 0.06%W/V, ascorbic acid 0.13%W/V, calcium chloride 0.08%W/V, Sal 2%W/V.
It is a yet further object of the present invention to provide a kind of method using the described fresh-keeping fresh-cut lotus root of fresh-cut lotus root antistaling agent, comprise the steps:
Step one, will treat that fresh-keeping Rhizoma Nelumbinis carries out pretreatment;
Step 2, described in pretreated, treat that fresh-keeping Rhizoma Nelumbinis impregnates 1-3min in described fresh-cut lotus root antistaling agent;
Step 3, take out described in treat that fresh-keeping Rhizoma Nelumbinis dries under normal temperature condition, and by treating that fresh-keeping Rhizoma Nelumbinis is put into described in after drying, packing box or packaging bag carry out vacuum packaging. Treat that fresh-keeping Rhizoma Nelumbinis impregnates 1-3min in fresh-cut lotus root antistaling agent by pretreated, fresh-cut lotus root antistaling agent is made to be sufficiently impregnated with treating the surface of fresh-keeping Rhizoma Nelumbinis, dried antistaling agent is also attached to treat the surface of fresh-keeping Rhizoma Nelumbinis, thus improving the preservativity of the fresh-cut lotus root after vacuum packaging.
Preferably, in the described method using the described fresh-keeping fresh-cut lotus root of fresh-cut lotus root antistaling agent, also including step 4, be placed in freezer by the packaging bag after vacuum packaging or packing box cold preservation, the refrigerated storage temperature of described freezer is 0～4 DEG C. Fresh-cut lotus root after fresh-cut lotus root antistaling agent processes can store 15 days in the freezer of 0～4 DEG C, and the fresh-cut lotus root after cryopreservation 15 days remains quality and the nutrition of original Rhizoma Nelumbinis, and has effectively contained the browning phenomenon that fresh-cut lotus root table becomes.
Preferably, in the described method using the described fresh-keeping fresh-cut lotus root of fresh-cut lotus root antistaling agent, pretreatment in described step one particularly as follows:
To treat that fresh-keeping Rhizoma Nelumbinis cleans peeling, and treat that fresh-keeping Rhizoma Nelumbinis is cut into Rhizoma Nelumbinis section described in after peeling, the thickness of described Rhizoma Nelumbinis section is 0.3-0.5cm.To treat that fresh-keeping Rhizoma Nelumbinis is cut into the Rhizoma Nelumbinis trimming of 0.3-0.5cm thickness, be conducive to fresh-cut lotus root antistaling agent fully to act on and treat fresh-keeping Rhizoma Nelumbinis, and people need not reprocess when edible fresh-cut lotus root, it is possible to directly eat.
Beneficial effects of the present invention is as follows:
1, in described fresh-cut lotus root antistaling agent, component is simple and each composition component is edible rank, can effectively contain the brown stain of fresh-cut lotus root surface, improve the oxidation resistance of fresh-cut lotus root, again will not at residual harmful composition.
2, in the described method using the described fresh-keeping fresh-cut lotus root of fresh-cut lotus root antistaling agent, this method is easily operated, efficiently, the fresh-keeping of fresh-cut lotus root is completed quickly, simultaneously, utilizing this method to carry out, fresh-cut lotus root is fresh-keeping can substantially contain the brown stain of fresh-cut lotus root surface, make fresh-cut lotus root remain with original quality and nutrition, and extend the fresh keeping time of fresh-cut lotus root, fresh-cut lotus root can be made fresh-keeping 15 days.
Detailed description of the invention
The present invention is described in further detail below, to make those skilled in the art can implement according to this with reference to description word.
The invention discloses a kind of fresh-cut lotus root antistaling agent, at least include: glucoseoxidase, cysteine, ascorbic acid, calcium chloride, Sal and water.
<embodiment one>
The invention provides a kind of fresh-cut lotus root antistaling agent, in described fresh-cut lotus root antistaling agent, the proportioning of described fresh-cut lotus root antistaling agent is: glucoseoxidase 0.05%W/V, cysteine 0.01%W/V, ascorbic acid 0.15%W/V, calcium chloride 0.05%W/V, Sal 1.55%W/V.
<embodiment two>
The invention provides a kind of fresh-cut lotus root antistaling agent, in described fresh-cut lotus root antistaling agent, the proportioning of described fresh-cut lotus root antistaling agent is: glucoseoxidase 0.12%W/V, cysteine 0.08%W/V, ascorbic acid 0.08%W/V, calcium chloride 0.1%W/V, Sal 2.5%W/V.
<embodiment three>
The invention provides a kind of fresh-cut lotus root antistaling agent, in described fresh-cut lotus root antistaling agent, the proportioning of described fresh-cut lotus root antistaling agent is: glucoseoxidase 0.07%W/V, cysteine 0.06%W/V, ascorbic acid 0.13%W/V, calcium chloride 0.08%W/V, Sal 2%W/V.
<embodiment four>
The invention provides a kind of method using the described fresh-keeping fresh-cut lotus root of fresh-cut lotus root antistaling agent, including:
Step one, will treat fresh-keeping Rhizoma Nelumbinis clean peeling, and by peeling after described in treat fresh-keeping Rhizoma Nelumbinis be cut into Rhizoma Nelumbinis section, described Rhizoma Nelumbinis section thickness be 0.3-0.5cm
Step 2, according to following described fresh-cut lotus root antistaling agent proportioning configure antistaling agent, its proportioning is: glucoseoxidase 0.05%W/V, cysteine 0.01%W/V, ascorbic acid 0.15%W/V, calcium chloride 0.05%W/V, Sal 1.55%W/V; The section of described Rhizoma Nelumbinis is impregnated 3min in described fresh-cut lotus root antistaling agent;
Step 3, take out the section of described Rhizoma Nelumbinis and dry under normal temperature condition, and the described Rhizoma Nelumbinis section after drying is put into packing box or packaging bag carry out vacuum packaging.
Step 4, being placed in freezer by the packaging bag after vacuum packaging or packing box cold preservation, the refrigerated storage temperature of described freezer is 2.5 DEG C.
<embodiment five>
The invention provides a kind of method using the described fresh-keeping fresh-cut lotus root of fresh-cut lotus root antistaling agent, including:
Step one, will treat fresh-keeping Rhizoma Nelumbinis clean peeling, and by peeling after described in treat fresh-keeping Rhizoma Nelumbinis be cut into Rhizoma Nelumbinis section, described Rhizoma Nelumbinis section thickness be 0.3-0.5cm
Step 2, according to following described fresh-cut lotus root antistaling agent proportioning configure antistaling agent, its proportioning is: glucoseoxidase 0.12%W/V, cysteine 0.08%W/V, ascorbic acid 0.08%W/V, calcium chloride 0.1%W/V, Sal 2.5%W/V, impregnates 1min by the section of described Rhizoma Nelumbinis in described fresh-cut lotus root antistaling agent;
Step 3, take out the section of described Rhizoma Nelumbinis and dry under normal temperature condition, and the described Rhizoma Nelumbinis section after drying is put into packing box or packaging bag carry out vacuum packaging.
Step 4, being placed in freezer by the packaging bag after vacuum packaging or packing box cold preservation, the refrigerated storage temperature of described freezer is 4 DEG C.
<embodiment six>
The invention provides a kind of method using the described fresh-keeping fresh-cut lotus root of fresh-cut lotus root antistaling agent, including:
Step one, will treat fresh-keeping Rhizoma Nelumbinis clean peeling, and by peeling after described in treat fresh-keeping Rhizoma Nelumbinis be cut into Rhizoma Nelumbinis section, described Rhizoma Nelumbinis section thickness be 0.3-0.5cm
Step 2, according to following described fresh-cut lotus root antistaling agent proportioning configure antistaling agent, its proportioning is: glucoseoxidase 0.07%W/V, cysteine 0.06%W/V, ascorbic acid 0.13%W/V, calcium chloride 0.08%W/V, Sal 2%W/V, impregnates 1min by the section of described Rhizoma Nelumbinis in described fresh-cut lotus root antistaling agent;
Step 3, take out the section of described Rhizoma Nelumbinis and dry under normal temperature condition, and the described Rhizoma Nelumbinis section after drying is put into packing box or packaging bag carry out vacuum packaging.
Step 4, being placed in freezer by the packaging bag after vacuum packaging or packing box cold preservation, the refrigerated storage temperature of described freezer is 4 DEG C.
<comparative example>
Step one, will treat fresh-keeping Rhizoma Nelumbinis clean peeling, and by peeling after described in treat fresh-keeping Rhizoma Nelumbinis be cut into Rhizoma Nelumbinis section, described Rhizoma Nelumbinis section thickness be 0.3-0.5cm
Step 2, the section of described Rhizoma Nelumbinis is put into and carried out vacuum packaging in packing box or packaging bag.
Step 3, being placed in freezer by the packaging bag after vacuum packaging or packing box cold preservation, the refrigerated storage temperature of described freezer is 0-4 DEG C.
Fresh-cut lotus root implements preservation method in embodiment four, embodiment five, embodiment six and comparative example respectively, respectively the 1st day, the 3rd day, the 10th day and the brown stain index on fresh-cut lotus root surface that detects in each embodiment for the 5th day, and utilize colourity L* and a* value to represent the brown stain index of fresh-cut lotus root, wherein needing sample to be processed than sodium hypochlorite with strong acid electrolysis water during detection L* value, after process, the L* value of sample can be more slightly lower. Wherein, L* is more big, and a* is more little, and color and luster is more good, and browning degree is more little, otherwise, browning degree is more big. Colourity L* and the a* value of detection is as shown in table 1.
Table 1 is the colourity L*/a* value testing result of fresh-cut lotus root
| Specific embodiment | 1 day | 3 days | 10 days | 15 days |
| Embodiment four | 78.34/-0.35 | 76.35/0.15 | 73.34/0.65 | 70.56/0.99 |
| Embodiment five | 78.57/-0.40 | 76.98/0.14 | 73.25/0.75 | 71.33/0.95 |
| Embodiment six | 78.32/-0.38 | 77.95/0.12 | 75.89/0.53 | 72.35/0.89 |
| Comparative example | 78.35/-0.37 | 75.33/0.50 | 70.12/1.47 | 60.34/1.48 |
From table 1, it is known that fresh-cut lotus root L*Value all declines with the prolongation of storage time, L in comparative example*Value declines the fastest, is L preserving latter stage*Value is reduced to 60.34 by 78.35; And fresh-cut lotus root L in the embodiment four, five and six after antistaling agent processes*Value is held at higher level within whole storage period, at storage fresh-cut lotus root L in latter stage*Value is 70.56; Equally, a of fresh-cut lotus root*Being worth along with storage time, numerical value becomes big, but antistaling agent process group amplitude of variation is far smaller than matched group, anaphase storage, matched group a*Value (1.48) far away is far longer than process group, the average a that three groups of antistaling agents process*Value is 0.94. Therefore, antistaling agent processes and significantly inhibits lotus root browning, prolongs storage period.
Meanwhile, fresh-cut lotus root is implemented in embodiment four, embodiment five, embodiment six and comparative example after preservation method respectively, and detects the 1st day, the 3rd day, the 10th day and the 15th day and detect in the fresh-cut lotus root in each embodiment parasitic bacterial number. Testing result is as shown in table 2.
The parasitic bacteria situation (logCFU/g) of table 2 fresh-cut lotus root
| Specific embodiment | 1 day | 3 days | 10 days | 15 days |
| Embodiment four | 4.01 | 4.23 | 5.53 | 5.89 |
| Embodiment five | 3.98 | 4.32 | 5.49 | 5.88 |
| Embodiment six | 4.05 | 4.19 | 5.45 | 5.76 |
| Comparative example | 3.95 | 4.59 | 6.75 | 7.50 |
From table 2, known along with the total number of bacteria extended in fresh-cut lotus root of storage time all in rising trend, but preserve the embodiment four, five and six groups that the unnecessary antistaling agent of the total number of bacteria starting matched group on the 3rd day processes, and along with the prolongation of storage time, the total number of bacteria of matched group is far longer than embodiment four, five and six groups. Preserve 10 days matched group totals number of bacteria more than 6logCFU/g, hence it is evident that more than embodiment four, five and six groups, and the Fresh-cut Lettuce that antistaling agent processes in 15 days, total number of bacteria is all less than 6logCFU/g, and there is not corruption in tissue.
Above-mentioned experiments show that, utilize embodiment four, fresh-cut lotus root after the preservation method process of embodiment five and embodiment six, it compares with the fresh-cut lotus root processed without fresh-cut lotus root antistaling agent in comparative example, embodiment four, can by fresh-keeping for the fresh-cut lotus root long period in embodiment five and embodiment six, and when fresh-keeping 15 days, brown stain of cut lotus root is significantly less than comparative example, and total number of bacteria is again smaller than comparative example, therefore embodiment four, after embodiment five and embodiment six utilizing fresh-cut lotus root antistaling agent process, can preserve the long period, the brown stain of containment fresh-cut lotus root, retain the original quality of fresh-cut lotus root and nutrition.
Although embodiments of the invention are disclosed as above, but listed utilization that it is not restricted in description and embodiment, it can be applied to various applicable the field of the invention completely, for those skilled in the art, it is easily achieved other amendment, therefore, under the general concept limited without departing substantially from claim and equivalency range, the present invention is not limited to specific details.
Claims (6)
1. a fresh-cut lotus root antistaling agent, it is characterised in that described fresh-cut lotus root antistaling agent includes: glucoseoxidase, cysteine, ascorbic acid, calcium chloride, Sal and water.
2. fresh-cut lotus root antistaling agent as claimed in claim 1, it is characterized in that, the proportioning of described fresh-cut lotus root antistaling agent is: glucoseoxidase 0.05～0.12%W/V, cysteine 0.01～0.08%W/V, ascorbic acid 0.08～0.15%W/V, calcium chloride 0.05～0.1%W/V, Sal 1.5～2.5%W/V.
3. fresh-cut lotus root antistaling agent as claimed in claim 1, it is characterised in that the proportioning of described fresh-cut lotus root antistaling agent is: glucoseoxidase 0.07%W/V, cysteine 0.06%W/V, ascorbic acid 0.13%W/V, calcium chloride 0.08%W/V, Sal 2%W/V.
4. the method for the use fresh-keeping fresh-cut lotus root of fresh-cut lotus root antistaling agent as described in any one of claims 1 to 3, it is characterised in that including:
Step one, will treat that fresh-keeping Rhizoma Nelumbinis carries out pretreatment;
Step 2, described in pretreated, treat that fresh-keeping Rhizoma Nelumbinis impregnates 1-3min in described fresh-cut lotus root antistaling agent;
Step 3, take out described in treat that fresh-keeping Rhizoma Nelumbinis dries under normal temperature condition, and by treating that fresh-keeping Rhizoma Nelumbinis is put into described in after drying, packing box or packaging bag carry out vacuum packaging.
5. the preservation method of fresh-cut lotus root as claimed in claim 4, it is characterised in that also including step 4, be placed in freezer by the packaging bag after vacuum packaging or packing box cold preservation, the refrigerated storage temperature of described freezer is 0～4 DEG C.
6. the preservation method of fresh-cut lotus root as claimed in claim 4, it is characterised in that pretreatment in described step one particularly as follows:
To treat that fresh-keeping Rhizoma Nelumbinis cleans peeling, and treat that fresh-keeping Rhizoma Nelumbinis is cut into Rhizoma Nelumbinis section described in after peeling, the thickness of described Rhizoma Nelumbinis section is 0.3-0.5cm.
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Cited By (6)
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| CN106172726A (en) * | 2016-07-28 | 2016-12-07 | 王正作 | A kind of preparation method of fresh-cut Rhizoma Nelumbinis |
| CN106819093A (en) * | 2017-02-13 | 2017-06-13 | 湖南轻工研究院有限责任公司 | A kind of lotus root band fresh-keeping and preserving method |
| CN107223703A (en) * | 2017-05-26 | 2017-10-03 | 太仓市微贯机电有限公司 | A kind of lotus rhizome fresh slices preservation method |
| CN107258894A (en) * | 2017-05-25 | 2017-10-20 | 成都璐城科技有限公司 | A kind of preservation method of large cherry |
| CN110024847A (en) * | 2019-05-17 | 2019-07-19 | 华中农业大学 | A kind of method of the lotus root with preservation and freshness |
| CN112205468A (en) * | 2020-10-22 | 2021-01-12 | 云南省农业科学院农产品加工研究所 | Coating preservative and preparation method and application thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106172726A (en) * | 2016-07-28 | 2016-12-07 | 王正作 | A kind of preparation method of fresh-cut Rhizoma Nelumbinis |
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| CN107258894A (en) * | 2017-05-25 | 2017-10-20 | 成都璐城科技有限公司 | A kind of preservation method of large cherry |
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| CN112205468A (en) * | 2020-10-22 | 2021-01-12 | 云南省农业科学院农产品加工研究所 | Coating preservative and preparation method and application thereof |
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