CN105076384A - Method for drying and storing fresh peanuts for reducing produced derogation - Google Patents
Method for drying and storing fresh peanuts for reducing produced derogation Download PDFInfo
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- CN105076384A CN105076384A CN201510450318.4A CN201510450318A CN105076384A CN 105076384 A CN105076384 A CN 105076384A CN 201510450318 A CN201510450318 A CN 201510450318A CN 105076384 A CN105076384 A CN 105076384A
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Abstract
The invention belongs to the field of processing of agriculture products, and discloses a method for drying and storing fresh peanuts for reducing produced derogation at producing areas. The method comprises the following steps: putting the fresh peanuts into multilayer drying equipment, drying the fresh peanuts for 5-6 hours until the moisture content of the peanuts is reduced to 26-21%, rinding the dried peanuts, processing the peanut kernels with a fresh keeping agent, drying the processed peanut kernels once again, and inflating, sealing and packaging the dried peanut kernels for keeping fresh. The method disclosed by the invention has the positive effects that the fresh peanuts are dried by in sectional type drying manner, the fresh peanuts are vacuumized, inflated, sealed and stored, the drying time is short, phenomena that the peanuts are hot, moldy and the like caused by the peanuts are harvested on cloudy and rainy day can be avoided, the quality of the peanuts is guaranteed, and the method belongs to a green and safe physical technology; the processing technology is simple and easy to operate, and industrialization is easy to realize.
Description
Technical field
The invention belongs to processing of farm products field, relate to the new technology of the raw reduction after producing drying of a kind of fresh flowers.
Background technology
In harvesting peanut period, if run into the rainy day, peanut can not get dry timely, because moisture height peanut very easily goes mouldy, thus causes plantation family, business economic loss.If adopt mechanical drying when the harvest time of peanut runs into overcast and rainy, namely segmented is dry, first use in the dry fresh peanut to certain moisture of drying machine, peel off on decorticator again, then on blast drier drying peanut benevolence in safe moisture, vacuum packaging machine carries out vacuumize filling CO 2 airtight package, room temperature storage.Adopt segmented drying can ensure the quality of fresh peanut under any weather condition, can avoid occurring generating heat because climate reasons makes fresh peanut can not get in time dry, mouldy etc., affect the quality of peanut raw material, bring certain economic loss also to enterprise and plantation family.Therefore, adopt the technology of segmented drying with vacuumize method that filling CO 2 storage technique combines can dry fresh peanut quickly and efficiently, can prevent again fresh peanut from occurring because of heating, the phenomenon such as mouldy, ensure the quality of peanut, extend its storage period, will have great importance to minimizing plantation family, business economic loss.
Summary of the invention
Main purpose of the present invention is to provide the dry new technology of the raw reduction after producing of a kind of fresh flowers, with fresh peanut for raw material, through removing inferior grain, drying, peel off, dry, pack, vacuumize, inflate, the operation such as packaging, room temperature storage.
Technical solution of the present invention is as follows:
The raw reduction after producing drying of fresh flowers and storage practice, comprise the steps:
(1) raw material selection: remove defect ware by after fresh peanut results;
(2) at drying machine 40 DEG C of dry 5-6h, moisture is dried within the scope of 21%-26%;
(3) peel off; On air dry oven 41-45 DEG C, drying peanut benevolence moisture is little to safe moisture is less than in 10% scope;
(4) composite preservative is prepared: shitosan, calcium propionate, beta carotene, rosemary, sterile distilled water add in reactor and stir, and obtain composite preservative; Get every 1000g and the 2500g peanut raw material of obtained composite preservative to mix, take out peanut raw material, dry, add 2 bag 5g black technique of activated ferrous powder with deoxidier agent again, (often the black technique of activated ferrous powder with weight of bag deoxidier is 5g, is purchased from Ling Xian bio tech ltd, Dongguan City, Guangdong Province);
(5) pack: thickness is 9, long 20-30cm, and the PA/PE co-extrusion film package bag of wide 10-20cm packs dried shelled peanut;
(6) gas flush packaging is vacuumized: type of respiration gas packed packaging machine vacuumizes, 50% carbon dioxide+1% carbon monoxide+49% nitrogen mixed gas is prepared in gazogene, being filled with in packaging bag, gas flow is 0.1-0.3Nml/h, bleed 1s, inflationtime is 0.5-0.8s, airtight package;
(7) preserve: preserve under room temperature (18 DEG C ~ 33 DEG C).
For reaching better technique effect, described composite preservative proportioning is 0.25% shitosan, 1% calcium propionate, 0.02% beta carotene, 0.01% rosemary, surplus are sterile distilled water;
Type of respiration gas packed packaging machine vacuumizes, and vacuum is 0.08-0.09MPa, and temperature is 25 DEG C, and the pumpdown time is 5-7s.
Adopt the present invention to have following three features: (1) can dry fresh peanut quickly and efficiently under disadvantageous weather conditions, can avoid can not obtaining dry fresh peanut heating, the phenomenon such as mouldy in time because of overcast and rainy; (2) invention technology belongs to pure physical technique, safe, green, the edible safety of energy effective guarantee raw material; (3) patented technology simple to operate, be easy to industrialized implementation.
Good effect of the present invention is: (1) adopts the dry fresh peanut of segmented, and drying time is short, can effectively avoid fresh peanut to run into rainy weather when gathering in the crops and cause peanut to generate heat, the phenomenon such as mouldy, belong to green, safe physical technique; (2) enforcement of the technology of the present invention opens the new channel of the raw reduction after producing dry technology of fresh flowers, reduces harm such as causing peanut rotten, mouldy because of climate reasons, decreases the economic loss of planting family simultaneously; (3) carbon dioxide and nitrogen gas are originated extensively, and cost is low, and product processing technique is simple for process, are easy to realize industrialization.
Detailed description of the invention
Embodiment 1
The present invention is achieved like this, and its processing step is:
(1) raw material selection: remove defect ware by after fresh peanut results;
(2) dry: at drying machine (40 DEG C) dry 5-6h, to be dried to moisture within the scope of 21%-26%;
(3) moisture is surveyed: the moisture measuring peanut every 1h;
(4) peel off: on decorticator, peanut is peeled off;
(5) dry: to be less than in 10% scope at the upper drying peanut benevolence moisture of air dry oven (41 DEG C) to safe moisture;
(6) fresh-keeping: (0.25% shitosan, 1% calcium propionate, 0.02% beta carotene, 0.01% rosemary, surplus are that sterile distilled water adds in reactor and stirs first to prepare composite preservative, namely required antistaling agent is obtained), get obtained composite preservative 1000g to mix with 2500g peanut raw material, take out peanut raw material, dry, add 2 bag black technique of activated ferrous powder with deoxidier agent again, (often the black technique of activated ferrous powder with weight of bag deoxidier is 5g, is purchased from Ling Xian bio tech ltd, Dongguan City, Guangdong Province);
(7) pack: thickness is 9, long 20-30cm, and the PA/PE co-extrusion film package bag of wide 10-20cm packs dried shelled peanut;
(8) gas flush packaging is vacuumized: type of respiration gas packed packaging machine vacuumizes, (vacuum is 0.08-0.09MPa, temperature is 25 DEG C, pumpdown time is 5-7s), in gazogene, prepare 50% carbon dioxide+1% carbon monoxide+49% nitrogen mixed gas, being filled with in packaging bag, gas flow is 0.1-0.3Nml/h, bleed 1s, and inflationtime is 0.5-0.8s, airtight package;
(9) preserve: stored at room temperature;
(10) observe, detect: to observe, every physical and chemical index in testing product: the moisture, acid value and the peroxide value that adopt the method to preserve the peanut sample of a year and control sample (after drying be control sample without the peanut sample of any process tying room temperature storage) detect according to standard GB/T/T20264-2006, SN/T0803.8-1999 and GB/T5538-2005 respectively, AFB
1be detect according to national standard NY/T1286-2007, its result is as follows: the moisture of peanut sample is 5.41%, and the moisture of control sample is 8.44%; The acid value of peanut sample is 0.714mg/g, and the acid value of control sample is 2.782mg/g; The peroxide value of peanut sample is 1.72meq/kg, and the peroxide value of control sample is 4.51meq/kg; The AFB of peanut sample
1content is the AFB of 0.086ppb, control sample
1content is 11.952ppb.
Embodiment 2
The present invention is achieved like this, and its processing step is:
(1) raw material selection: remove defect ware by after fresh peanut results;
(2) dry: at drying machine (46 DEG C) dry 5-6h, being dried to moisture is within 24%-21%;
(3) moisture is surveyed: the moisture measuring peanut every 1h;
(4) peel off: on decorticator, peanut is peeled off;
(5) dry: at the upper drying peanut benevolence moisture of air dry oven (42 DEG C) within the scope of safe moisture;
(6) fresh-keeping: (0.25% shitosan, 1% calcium propionate, 0.08% beta carotene, 0.12% rosemary, surplus are that 1000ml sterile distilled water adds in reactor and stirs first to prepare composite preservative, namely required antistaling agent is obtained), get obtained composite preservative 1000g to mix with 2000g peanut raw material, take out peanut raw material, dry, then add 2 bag black technique of activated ferrous powder with deoxidier agent;
(7) pack: thickness is 9, long 20-30cm, and the PA/PE co-extrusion film package bag of wide 10-20cm packs dried shelled peanut;
(8) gas flush packaging is vacuumized: type of respiration gas packed packaging machine vacuumizes, (vacuum is 0.08-0.09MPa, temperature is 25 DEG C, pumpdown time is 5-7s), fill and prepare 90% carbon dioxide+10% air gas mixture in gazogene, being filled with in packaging bag, gas flow is 0.1-0.3Nml/h, bleed 1s, and inflationtime is 0.5-0.8s, airtight package;
(9) preserve: stored at room temperature;
(10) observe, detect: every physical and chemical index in observation, testing product.
Embodiment 3
The present invention is achieved like this, and its processing step is:
(1) raw material selection: remove defect ware by after fresh peanut results;
(2) dry: at drying machine (50 DEG C) dry 5-6h, being dried to moisture is within 24%-21%;
(3) moisture is surveyed: the moisture measuring peanut every 1h;
(4) peel off: on decorticator, peanut is peeled off;
(5) dry: at the upper drying peanut benevolence moisture of air dry oven (44 DEG C) within the scope of safe moisture;
(6) fresh-keeping: (0.5% rosemary, 0.25% shitosan, 1% calcium propionate, 0.5% beta carotene, surplus are that 1000ml sterile distilled water adds in reactor and stirs first to prepare composite preservative, namely required antistaling agent is obtained), get obtained composite preservative 1000g to mix with 1000g peanut raw material, take out peanut raw material, dry, then add 1 ~ 2 bag black technique of activated ferrous powder with deoxidier agent;
(7) pack: thickness is 9, long 20-30cm, and the PA/PE co-extrusion film package bag of wide 10-20cm packs dried shelled peanut;
(8) gas flush packaging is vacuumized: type of respiration gas packed packaging machine vacuumizes, (vacuum is 0.08-0.09MPa, temperature is 25 DEG C, pumpdown time is 5-7s), in gazogene, prepare 60% carbon dioxide+0.5% carbon monoxide+39.5% nitrogen mixed gas, being filled with in packaging bag, gas flow is 0.1-0.3Nml/h, bleed 1s, and inflationtime is 0.5-0.8s, airtight package;
(9) preserve: stored at room temperature;
(10) observe, detect: every physical and chemical index in observation, testing product.
Claims (3)
1. the raw reduction after producing drying of fresh flowers and storage practice, is characterized in that comprising the steps:
(1) raw material selection: remove defect ware by after fresh peanut results;
(2) at drying machine 40 DEG C of dry 5-6h, moisture is dried within the scope of 21%-26%;
(3) peel off; On air dry oven 41-45 DEG C, drying peanut benevolence is less than 10% to moisture;
(4) composite preservative is prepared: shitosan, calcium propionate, beta carotene, rosemary, sterile distilled water stir, and obtain composite preservative; Get every 1000g and the 2500g peanut raw material of obtained composite preservative to mix, take out peanut raw material, dry, then add 10g black technique of activated ferrous powder with deoxidier;
(5) thickness is 9, long 20-30cm, and the PA/PE co-extrusion film package bag of wide 10-20cm packs dried shelled peanut;
(6) gas flush packaging is vacuumized: type of respiration gas packed packaging machine vacuumizes, in gazogene, prepare 50% carbon dioxide+1% carbon monoxide+49% nitrogen mixed gas, being filled with in packaging bag, gas flow is 0.1-0.3Nml/h, inflationtime is 0.5-0.8s, airtight package;
Preserve at (7) 18 DEG C ~ 33 DEG C.
2. fresh flowers gives birth to reduction after producing drying and storage practice according to claim 1, it is characterized in that: described composite preservative proportioning is 0.25% shitosan, 1% calcium propionate, 0.02% beta carotene, 0.01% rosemary, surplus are sterile distilled water.
3. fresh flowers gives birth to reduction after producing drying and storage practice according to claim 1, and it is characterized in that: type of respiration gas packed packaging machine vacuumizes, vacuum is 0.08-0.09MPa, and temperature is 25 DEG C, and the pumpdown time is 5-7s.
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Cited By (2)
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CN107712037A (en) * | 2017-09-30 | 2018-02-23 | 江西省农业科学院 | A kind of method of fresh peanut preservation and freshness |
CN109105847A (en) * | 2018-08-27 | 2019-01-01 | 河南正花食品集团有限公司 | A kind of peanut processing technique to extend the shelf life |
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CN107712037A (en) * | 2017-09-30 | 2018-02-23 | 江西省农业科学院 | A kind of method of fresh peanut preservation and freshness |
CN107712037B (en) * | 2017-09-30 | 2021-04-27 | 江西省农业科学院 | Method for storing and preserving fresh peanuts |
CN109105847A (en) * | 2018-08-27 | 2019-01-01 | 河南正花食品集团有限公司 | A kind of peanut processing technique to extend the shelf life |
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