CN103053686A - Aspergillus flavus infection resistance method for xanthan gum composite membrane covered peanuts - Google Patents
Aspergillus flavus infection resistance method for xanthan gum composite membrane covered peanuts Download PDFInfo
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- CN103053686A CN103053686A CN2013100280760A CN201310028076A CN103053686A CN 103053686 A CN103053686 A CN 103053686A CN 2013100280760 A CN2013100280760 A CN 2013100280760A CN 201310028076 A CN201310028076 A CN 201310028076A CN 103053686 A CN103053686 A CN 103053686A
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- peanut
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- xanthans
- composite membrane
- aspergillus flavus
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Abstract
The invention discloses an aspergillus flavus infection resistance method for xanthan gum composite membrane covered peanuts, comprising the following steps of adding peanut shell powder into a citric acid solution, conducting microwave extraction, leaching and concentrating the solution; adding absolute ethyl alcohol into the solution; standing, centrifuging, precipitating, freezing and drying; smashing to obtain peanut water-soluble dietary fiber; adding the peanut water-soluble dietary fiber into distilled water, and mixing uniformly; adding the xanthan gum under a stirring condition; removing bubble in vacuum to obtain xanthan gum water-soluble dietary fiber composite membrane coating materials; coating the coating materials on peanuts; packaging the peanuts; and storing the peanut at a normal temperature. The xanthan gum composite membrane covered peanuts prepared by the method can resist the aspergillus flavus infection, restrains the growth of the aspergillus flavus, prevents the peanut fat from being oxidized and is stored for a long term and suitable for industrial production.
Description
Technical field
The present invention relates to the method for the xanthans composite membrane dressing peanut of aspergillus flavus infection resistance, belong to food storage and manufacture field.
Background technology
Peanut is pulse family Arachis crop, is rich in grease and albumen, is the important oil crops of China and industrial crops.Because the impact of the individual plantation of climate factor and peasant household, storage method, peanut is subject to aflatoxin contamination, causes huge economic loss.Aflatoxin (Aflatoxin, AFT) be a class can be carcinogenic, teratogenesis, mutagenic mycotoxin, it is the promoting factor of Various Diseases viral disease eruption and prevalence, and is because the target organ of aflatoxin effect is liver, very serious to people and animals' harm.At present, need low temperature, drying, ventilated good storage condition guarantee peanut to avoid infecting of aspergillus flavus.Like this, just need cooling, dehumidification system to guarantee storage environment, cost is very high.So, in the urgent need to the storage practice simple, convenient, that cost is low.
The dressing storage practice of filming is in recent years food industry and plants the emerging technology of industry, and it is to adopt natural macromolecular material, through the bright and clean film of layer of transparent that forms at food or the surface of the seed after certain processing.It has selects gas permeability, water preventing ability, colourless, tasteless, nontoxic advantage preferably.Xanthans is a kind of monospore polysaccharide that is produced by the fermentation of false xanthomonas, is to collect in the world at present thickening, suspension, emulsification, be stable at one, the biogum that best performance is got over.Xanthans has the high molecular general performance of long-chain, but it contains more functional group than general macromolecule, can show special performance under given conditions, such as suspension and emulsibility, good water-soluble, thickening property, pseudoplastic behavior, to the stability of heat, to the stability of soda acid, to the stability of salt, to the stability of enzyme digestion reaction.Water-soluble dietary fiber refers to and can not be digested by the digestive ferment that human body alimentary canal is secreted, but dissolves in warm water or hot water, and its aqueous solution can be equivalent to again four times of non-starch based polysaccharide of the reppd part of absolute ethyl alcohol.According to studies have shown that, water-soluble dietary fiber has many physiological functions, such as antibacterial, non-oxidizability and effect of scavenging radical.It is base-material that the present invention intends adopting xanthans, and peanut water-soluble dietary fiber is little molecular nutrition composition, makes monomer dressing and storage that xanthans composite membrane coating agent is used for peanut.Peanut water-soluble dietary fiber has biocidal property, can prevent the aspergillus flavus infecting peanut.In addition, the xanthans composite membrane of preparation has certain mechanical performance (thickness is little, tensile strength is large, good percentage elongation), gas is selected permeability (CO
2Air penetrability is large, O
2Air penetrability is little), advantages such as resistance moist (rate of perviousness and hydroscopicity are little), antibiotic property and edibility etc., be well suited for large warehoused under the normal temperature, and can prevent the peanut fat oxidation, prolong storage period, improve society and economic benefit.This xanthans composite membrane dressing peanut can be realized automated production, for peanut storage provides new technology with fresh-keeping.
Summary of the invention
The purpose of this invention is to provide can aspergillus flavus infection resistance, but Long-term Storage, and can prevent the method for the xanthans composite membrane dressing peanut aspergillus flavus infection resistance of peanut fat oxidation.
For achieving the above object, the present invention adopts following steps:
Peanut hull meal adds citric acid solution, the microwave lixiviate, and suction filtration, concentrated, add absolute ethyl alcohol, leave standstill, centrifugal, the precipitation freeze drying is pulverized, and obtains peanut water-soluble dietary fiber; Peanut water-soluble dietary fiber adds distilled water, mixes, and adds xanthans under stirring condition, and the vacuum outgas bubble obtains xanthans-water-soluble dietary fiber composite membrane coating agent, the peanut dressing of filming, packing, room temperature storage.
Specifically, described method is as follows:
(1) peanut hull meal adds citric acid solution, the microwave lixiviate, and vacuum filtration, rotary evaporation in vacuo is concentrated, adds absolute ethyl alcohol, leaves standstill, and is centrifugal, and the precipitation freeze drying is pulverized, and obtains peanut water-soluble dietary fiber;
(2) peanut water-soluble dietary fiber adds distilled water, mixes, and adds xanthans under stirring condition, and the vacuum outgas bubble obtains xanthans-water-soluble dietary fiber composite membrane coating agent, the peanut dressing of filming in intelligent coating machine, packing, room temperature storage.
The quality of the described peanut hull meal of step of the present invention (1) and the volume ratio of citric acid solution are 1:11.5-1:13.5 (g/mL), preferred 1:11.9-1:12.8 (g/mL); The quality percentage composition of citric acid solution is 0.90%-0.98%, preferred 0.93%-0.98%; The microwave extracting condition is microwave power 800w, 83 ℃ of microwave temperature, microwave treatment time 6.4min, under 77 ℃ of water bath heating temperatures, vacuum-0.1MPa condition, concentrated with 165r/min rotating speed rotary evaporation in vacuo, in concentrate, add 4 times to the absolute ethyl alcohol of concentrate volume, in 4 ℃ of refrigerators, leave standstill 12h after centrifugation, centrifugation condition temperature is that 20 ℃, rotating speed are that 6500r/min, time are 15min.
The quality of the described peanut water-soluble dietary fiber of step of the present invention (2) and the volume ratio of distilled water are 1:100-1:200(g/mL), preferred 1:100-1:150(g/mL) speed that stirs is 700-1000r/min, the quality of xanthans and the volume ratio of distilled water are 0.5:100-1.5:100(g/mL), preferred 0.8:100-1.2:100(g/mL), the condition of vacuum outgas bubble is 25 ℃, the film condition of dressing of vacuum-0.1MPa, peanut is 58 ℃ of EATs, the air quantity 640m of high efficiency smart seed-coating machine
3/ h, wind speed 13.8m/s, air draft wind speed 11.8m/s, humidity 32%, dressing atomisation pressure 32psi, flow 41g/min.
Dressing peanut products surface attachment one deck is difficult for discovering, colourless, transparent, and have and suppress inside and outside gas, moisture and solute exchange and hinder microorganism to the film of the effects such as peanut infringement.The xanthans composite membrane of preparation has certain mechanical performance (thickness is little, tensile strength is large, good percentage elongation), gas selection permeability (CO
2Air penetrability is large, O
2Air penetrability is little), resistance moist (rate of perviousness and hydroscopicity are little), have and suppress aspergillus spore and sprout, suppress the advantages such as aspergillus flavus mycelial growth and edibility.The dressing peanut products can be realized monomer overlay film dressing, plastic bag sealing normal temperature storage.The more important thing is that the dressing peanut products can effectively prevent infecting of aspergillus flavus, the pollution of stopping aflatoxin, the foodsafety of raising peanut and goods thereof.In addition, the film of dressing has barrier, can prevent that the overpack harmful substance is to the migration of peanut; Film also has preferably oxygen barrier and CO
2Dissolubility can prevent the peanut fat oxidation, prolongs storage period.The method of xanthans composite membrane dressing peanut provides new technology for peanut storage with fresh-keeping.
The specific embodiment
Embodiment 1
Peanut hull meal adding quality percentage composition is 0.95% citric acid solution, the quality of peanut hull meal and citric acid solution and volume ratio are 1:12.8 (g/mL), be 800w at microwave power, the microwave temperature is under 83 ℃ of conditions, microwave lixiviate 6.4min, 77 ℃ of water bath heating temperatures, under vacuum-0.1MPa condition, concentrated with 165r/min rotating speed rotary evaporation in vacuo, obtain concentrate, in concentrate, add 4 times to the absolute ethyl alcohol of concentrate volume, centrifugation after 4 ℃ of refrigerators leave standstill 12h, under 20 ℃ of conditions, the centrifugal 15min of 6500r/min gets the precipitation freeze drying, pulverize with food processor, obtain peanut water-soluble dietary fiber; Add distilled water in the peanut water-soluble dietary fiber, the quality of peanut water-soluble dietary fiber and distilled water and volume ratio are 1:100 (g/mL), mix with mixer, low whipping speed is to add xanthans under the 700 r/min conditions, the quality of xanthans and the volume ratio of distilled water are 1.0:100(g/mL), with vacuum desiccator vacuum-0.1MPa, remove bubble under 25 ℃ of conditions, obtain xanthans-water-soluble dietary fiber composite membrane coating agent, the film condition of dressing of the peanut dressing of filming in the high efficiency smart seed-coating machine, peanut is 58 ℃ of the EATs of high efficiency smart seed-coating machine, air quantity 640m
3/ hr, wind speed 13.8m/s, air draft wind speed 11.8m/s, humidity 32%, dressing atomisation pressure 32psi, flow 41g/min, the dressing peanut is packed with plastic bag sealing, room temperature storage.This xanthans composite membrane dressing peanut surface attachment homogeneous, water white whippy film, the mechanical performance of film comprises: thickness is 0.023mm, and tensile strength is 20.4MPa, and percentage elongation is 12.2%, and moisture permeable coefficient is 8.95 * 10
-3G.mm/ (mm
2HmmHg), CO
2Air penetrability is 1.827 * 10
-10Ml.cm/ (cm
2ScmHg), O
2Air penetrability is 1.296 * 10
-10Ml.cm/ (cm
2ScmHg), hydroscopicity is 6.48%.Xanthans and peanut water-soluble dietary fiber composite membrane fungistatic effect comprise: suppress the aspergillus flavus growth: (be coated with 100 μ l concentration is 10 to Czapek's medium
2The aspergillus spore suspension of/μ l) dripping 15 μ l concentration in is xanthans and the peanut water-soluble dietary fiber mixed liquor of 10.00mg/mL, 28 ℃ of about 2.78cm of antibacterial circle diameter that cultivate 48 h; Suppress the sprouting of aspergillus spore: (contain aspergillus spore concentration is 10 to the potato glucose fluid nutrient medium
4/ ml) middle adding concentration is xanthans and the peanut water-soluble dietary fiber mixed liquor of 10.00mg/mL, cultivate 48 h aspergillus spores for 28 ℃ and suppressed not sprouting fully; Suppress the aspergillus flavus mycelial growth: (contain aspergillus spore concentration is 10 to the potato glucose fluid nutrient medium
3/ ml) middle adding concentration is xanthans and the peanut water-soluble dietary fiber mixed liquor of 10.00mg/mL, 28 ℃ of cultivation 72h aspergillus flavus mycelial growths are fully suppressed; Dripping 10 μ l concentration in the Czapek's medium (containing xanthans and peanut water-soluble dietary fiber mixed liquor) is 10
2The aspergillus spore suspension of/μ l, 28 ℃ of IC that cultivate the inhibition aspergillus flavus growth of 72h
50Value is 3.27mg/mL; Suppress the growth of aspergillus flavus on the peanut: (scarlet surface-coated 100 μ l concentration are 10 for xanthans and peanut water-soluble dietary fiber composite membrane dressing peanut
2The aspergillus spore suspension of/μ l), cultivate 120h for 28 ℃, the growth of aspergillus flavus is fully suppressed.
Embodiment 2
Peanut hull meal adding quality percentage composition is 0.93% citric acid solution, the quality of peanut hull meal and citric acid solution and volume ratio are 1:11.9 (g/mL), be 800w at microwave power, the microwave temperature is under 83 ℃ of conditions, microwave lixiviate 6.4min, 77 ℃ of water bath heating temperatures, under vacuum-0.1MPa condition, concentrated with 165r/min rotating speed rotary evaporation in vacuo, obtain concentrate, in concentrate, add 4 times to the absolute ethyl alcohol of concentrate volume, centrifugation after 4 ℃ of refrigerators leave standstill 12h, under 20 ℃ of conditions, the centrifugal 15min of 6500r/min gets the precipitation freeze drying, pulverize with food processor, obtain peanut water-soluble dietary fiber; Add distilled water in the peanut water-soluble dietary fiber, the quality of peanut water-soluble dietary fiber and distilled water and volume ratio are 1:150 (g/mL), mix with mixer, low whipping speed is to add xanthans under the 700 r/min conditions, the quality of xanthans and the volume ratio of distilled water are 1.2:100(g/mL), with vacuum desiccator vacuum 0.1MPa, remove bubble under 25 ℃ of conditions, obtain xanthans-water-soluble dietary fiber composite membrane coating agent, the film condition of dressing of the peanut dressing of filming in the high efficiency smart seed-coating machine, peanut is 58 ℃ of the EATs of high efficiency smart seed-coating machine, air quantity 640m
3/ hr, wind speed 13.8m/s, air draft wind speed 11.8m/s, humidity 32%, dressing atomisation pressure 32psi, flow 41g/min, the dressing peanut is packed with plastic bag sealing, room temperature storage.This xanthans composite membrane dressing peanut surface attachment homogeneous, water white whippy film, the mechanical performance of film comprises: thickness is 0.025mm, and tensile strength is 21.6MPa, and percentage elongation is 13.8%, and moisture permeable coefficient is 9.03 * 10
-3G.mm/ (mm
2HmmHg), CO
2Air penetrability is 1.779 * 10
-10Ml.cm/ (cm
2ScmHg), O
2Air penetrability is 1.263 * 10
-10Ml.cm/ (cm
2ScmHg), hydroscopicity is 7.03%.Xanthans and peanut water-soluble dietary fiber composite membrane fungistatic effect comprise: suppress the aspergillus flavus growth: (be coated with 100 μ l concentration is 10 to Czapek's medium
2The aspergillus spore suspension of/μ l) dripping 15 μ l concentration in is xanthans and the peanut water-soluble dietary fiber mixed liquor of 6.67mg/mL, 28 ℃ of about 2.35cm of antibacterial circle diameter that cultivate 48 h; Suppress the sprouting of aspergillus spore: (contain aspergillus spore concentration is 10 to the potato glucose fluid nutrient medium
4/ ml) middle adding concentration is xanthans and the peanut water-soluble dietary fiber mixed liquor of 6.67mg/mL, cultivate 48 h aspergillus spores for 28 ℃ and suppressed not sprouting fully; Suppress the aspergillus flavus mycelial growth: (contain aspergillus spore concentration is 10 to the potato glucose fluid nutrient medium
3/ ml) middle adding concentration is xanthans and the peanut water-soluble dietary fiber mixed liquor of 6.67mg/mL, 28 ℃ of cultivation 72h aspergillus flavus mycelial growths are fully suppressed; Dripping 10 μ l concentration in the Czapek's medium (containing xanthans and peanut water-soluble dietary fiber mixed liquor) is 10
2The aspergillus spore suspension of/μ l, 28 ℃ of IC that cultivate the inhibition aspergillus flavus growth of 72h
50Value is 4.03mg/mL; Suppress the growth of aspergillus flavus on the peanut: (scarlet surface-coated 100 μ l concentration are 10 for xanthans and peanut water-soluble dietary fiber composite membrane dressing peanut
2The aspergillus spore suspension of/μ l), cultivate 120h for 28 ℃, the growth of aspergillus flavus is fully suppressed.
Embodiment 3
Peanut hull meal adding quality percentage composition is 0.98% citric acid solution, the quality of peanut hull meal and citric acid solution and volume ratio are 1:13.2, be 800w at microwave power, the microwave temperature is under 83 ℃ of conditions, microwave lixiviate 6.4min, 77 ℃ of water bath heating temperatures, under vacuum-0.1MPa condition, concentrated with 165r/min rotating speed rotary evaporation in vacuo, obtain concentrate, in concentrate, add 4 times to the absolute ethyl alcohol of concentrate volume, centrifugation after 4 ℃ of refrigerators leave standstill 12h, under 20 ℃ of conditions, the centrifugal 15min of 6500r/min gets the precipitation freeze drying, pulverize with food processor, obtain peanut water-soluble dietary fiber; Add distilled water in the peanut water-soluble dietary fiber, the quality of peanut water-soluble dietary fiber and distilled water and volume ratio are 1:135 (g/mL), mix with mixer, low whipping speed is to add xanthans under the 700 r/min conditions, the quality of xanthans and the volume ratio of distilled water are 0.8:100(g/mL), with removing bubble under vacuum desiccator vacuum 0.1MPa, 25 ℃ of conditions, the film condition of dressing of peanut is 58 ℃ of EATs, the air quantity 640m of high efficiency smart seed-coating machine
3/ hr, wind speed 13.8m/s, air draft wind speed 11.8m/s, humidity 32%, dressing atomisation pressure 32psi, flow 41g/min, the dressing peanut is packed with plastic bag sealing, room temperature storage.This xanthans composite membrane dressing peanut surface attachment homogeneous, water white whippy film, the mechanical performance of film comprises: thickness is 0.021mm, and tensile strength is 20.9MPa, and percentage elongation is 14.2%, and moisture permeable coefficient is 8.68 * 10
-3G.mm/ (mm
2HmmHg), CO
2Air penetrability is 1.866 * 10
-10Ml.cm/ (cm
2ScmHg), O
2Air penetrability is 1.239 * 10
-10Ml.cm/ (cm
2ScmHg), hydroscopicity is 6.89%.Xanthans and peanut water-soluble dietary fiber composite membrane fungistatic effect comprise: suppress the aspergillus flavus growth: (be coated with 100 μ l concentration is 10 to Czapek's medium
2The aspergillus spore suspension of/μ l) dripping 15 μ l concentration in is xanthans and the peanut water-soluble dietary fiber mixed liquor of 7.41mg/mL, 28 ℃ of about 2.51cm of antibacterial circle diameter that cultivate 48 h; Suppress the sprouting of aspergillus spore: (contain aspergillus spore concentration is 10 to the potato glucose fluid nutrient medium
4/ ml) middle adding concentration is xanthans and the peanut water-soluble dietary fiber mixed liquor of 7.41mg/mL, cultivate 48 h aspergillus spores for 28 ℃ and suppressed not sprouting fully; Suppress the aspergillus flavus mycelial growth: (contain aspergillus spore concentration is 10 to the potato glucose fluid nutrient medium
3/ ml) middle adding concentration is xanthans and the peanut water-soluble dietary fiber mixed liquor of 7.41mg/mL, 28 ℃ of cultivation 72h aspergillus flavus mycelial growths are fully suppressed; Dripping 10 μ l concentration in the Czapek's medium (containing xanthans and peanut water-soluble dietary fiber mixed liquor) is 10
2The aspergillus spore suspension of/μ l, 28 ℃ of IC that cultivate the inhibition aspergillus flavus growth of 72h
50Value is 3.66mg/mL; Suppress the growth of aspergillus flavus on the peanut: (scarlet surface-coated 100 μ l concentration are 10 for xanthans and peanut water-soluble dietary fiber composite membrane dressing peanut
2The aspergillus spore suspension of/μ l), cultivate 120h for 28 ℃, the growth of aspergillus flavus is fully suppressed.
Claims (7)
1. the method for an xanthans composite membrane dressing peanut aspergillus flavus infection resistance may further comprise the steps:
(1) peanut hull meal adds citric acid solution, the microwave lixiviate, and vacuum filtration, rotary evaporation in vacuo is concentrated, adds absolute ethyl alcohol, leave standstill, centrifugation, the precipitation freeze drying is pulverized, and obtains peanut water-soluble dietary fiber;
(2) peanut water-soluble dietary fiber adds distilled water, mixes, and adds xanthans under stirring condition, vacuum outgas bubble obtains xanthans-water-soluble dietary fiber composite membrane coating agent, the peanut dressing of filming in the high efficiency smart seed-coating machine, packing, room temperature storage.
2. the method for xanthans composite membrane dressing peanut aspergillus flavus infection resistance according to claim 1, it is characterized in that: the quality of the described peanut hull meal of step (1) and the volume ratio of citric acid solution are 1:11.5-1:13.5 (g/mL), the quality percentage composition of citric acid solution is 0.90%-0.98%, the microwave extracting condition is microwave power 800w, 83 ℃ of microwave temperature, microwave treatment time 6.4min, 77 ℃ of water bath heating temperatures, under vacuum-0.1MPa condition, concentrated with 165r/min rotating speed rotary evaporation in vacuo, in concentrate, add 4 times to the absolute ethyl alcohol of concentrate volume, centrifugation after in 4 ℃ of refrigerators, leaving standstill 12h, centrifugation condition temperature is 20 ℃, rotating speed is 6500r/min, time is 15min.
3. the method for xanthans composite membrane dressing peanut aspergillus flavus infection resistance according to claim 1, it is characterized in that: the quality of the described peanut water-soluble dietary fiber of step (2) and the volume ratio of distilled water are 1:100-1:200(g/mL), the speed that stirs is 700-1000r/min, the quality of xanthans and the volume ratio of distilled water are 0.5:100-1.5:100(g/mL), the condition of vacuum outgas bubble is 25 ℃, the film condition of dressing of vacuum-0.1MPa, peanut is 58 ℃ of EATs, the air quantity 640m of high efficiency smart seed-coating machine
3/ h, wind speed 13.8m/s, air draft wind speed 11.8m/s, humidity 32%, dressing atomisation pressure 32psi, flow 41g/min.
4. the method for xanthans composite membrane dressing peanut aspergillus flavus infection resistance according to claim 2 is characterized in that, the quality of described peanut hull meal and the volume ratio of citric acid solution are 1:11.9-1:12.8 (g/mL).
5. the method for xanthans composite membrane dressing peanut aspergillus flavus infection resistance according to claim 2, it is characterized in that: the quality percentage composition of described citric acid solution is 0.93%-0.98%.
6. the method for xanthans composite membrane dressing peanut aspergillus flavus infection resistance according to claim 3, it is characterized in that: the quality of described peanut water-soluble dietary fiber and the volume ratio of distilled water are 1:100-1:150(g/mL).
7. the method for xanthans composite membrane dressing peanut aspergillus flavus infection resistance according to claim 3, it is characterized in that: the quality of described xanthans and the volume ratio of distilled water are 0.8:100-1.2:100(g/mL).
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| CN103858557A (en) * | 2014-04-09 | 2014-06-18 | 青岛博之源生物技术有限公司 | Method for coating biennial peanut seeds |
| CN103875680A (en) * | 2014-04-09 | 2014-06-25 | 青岛博之源生物技术有限公司 | Seed coating for preventing aflatoxin contamination of peanuts |
| CN109198011A (en) * | 2018-11-08 | 2019-01-15 | 广东雅和生物科技有限公司 | Antioxidizing antistaling agent, red peanut rice and its keeping method and production method |
| CN110922621A (en) * | 2019-12-05 | 2020-03-27 | 山东省花生研究所 | Edible antibacterial film carrying dietary fibers and preparation method thereof |
| CN112272991A (en) * | 2020-10-28 | 2021-01-29 | 青岛市农业科学研究院 | Novel green plant polysaccharide coating for peanuts and capable of resisting aspergillus flavus infection and application method of novel green plant polysaccharide coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103858557A (en) * | 2014-04-09 | 2014-06-18 | 青岛博之源生物技术有限公司 | Method for coating biennial peanut seeds |
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| CN110922621A (en) * | 2019-12-05 | 2020-03-27 | 山东省花生研究所 | Edible antibacterial film carrying dietary fibers and preparation method thereof |
| CN110922621B (en) * | 2019-12-05 | 2022-03-11 | 山东省花生研究所 | Edible antibacterial film carrying dietary fibers and preparation method thereof |
| CN112272991A (en) * | 2020-10-28 | 2021-01-29 | 青岛市农业科学研究院 | Novel green plant polysaccharide coating for peanuts and capable of resisting aspergillus flavus infection and application method of novel green plant polysaccharide coating |
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|---|---|
| CN103053686B (en) | 2013-12-25 |
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