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Abstract

Objective: This study aimed to prepare a zein film from the gliadin in corn-germ pulp and study its process, performance and antioxidant properties. Methods: The corn-germ pulp was used as raw material, and zein was extracted from corn germ pulp by alkali-soluble acid precipitation. A certain amount of ethanol solution was added, and then an appropriate amount of plasticizer and reducing agent was added by using the ultrasonic assist method. After the membrane solution was in a water-bath at room temperature for 30 minutes, the membrane solution was cast into a zein membrane. The influence of the four factors of glycerol addition, ultrasonic time, ethanol concentration and water bath temperature on the water solubility, water vapor transmission rate, and CO2 transmission rate of the zein film were explored, and the best preparation process was obtained. By coating the film-forming liquid on the surface of the pear slices, the anti-oxidation preservation test was performed, and the blank control of the coating film was used to observe the degree of browning on the surface of the pear slices. Results: Through orthogonal experiments, the optimal membrane preparation process was obtained as follows: glycerin addition of 0.3 g/g gliadin, ultrasound time of 5 min, ethanol concentration of 80%, and water bath temperature of 70 ℃. Under the control of these conditions, the water solubility of the zein membrane was 19.75%, with the WVP of 6.13 g·mm/(m2·d·kPa), and the CO2 permeability was 0.21 g/(m2·h), The preparation of protein film liquid from corn germ pulp could significantly reduce the browning speed of pear slices. Conclusion: It is feasible to prepare protein film from corn germ pulp, and the film liquid can play a good antioxidant effect on the preservation of fruits and vegetables.

Publication Date

6-30-2022

First Page

94

Last Page

100

DOI

10.13652/j.spjx.1003.5788.2022.90089

References

[1] 张婷婷.可食性玉米蛋白膜制取关键技术的研究[D].长春:吉林农业大学,2013:3-4.ZHANG Ting-ting.Research on the key technology of preparing edible corn gluten film[D].Changchun:Jilin Agricultural University,2013:3-4.
[2] 张雪娜,任婷婷,左春艳,等.可食性玉米醇溶蛋白膜的制备及其在食品保藏中的应用研究[J].粮食加工,2012,37(6):34-37.ZHANG Xue-na,REN Ting-ting,ZUO Chun-yan,et al.Preparation of edible zein film and its application in food preservation[J].Food Processing,2012,37(6):34-37.
[3] 刘婷婷,张颖,李娜,等.超声波微波协同制备玉米醇溶蛋白/壳聚糖复合膜工艺优[J].食品科学,2016,37(20):1-5.LIU Ting-ting,ZHANG Ying,LI Na,et al.Ultrasonic and microwave synergistic preparation of zein/chitosan composite membrane technology[J].Food Science,2016,37(20):1-5.
[4] 贾祥祥.制备条件对玉米醇溶蛋白膜性能的影响研究[D].郑州:河南工业大学,2012:17-19.JIA Xiang-xiang.Study on the effect of preparation conditions on the performance of zein membrane[D].Zhengzhou:Henan University of Technology,2012:17-19.
[5] 曹思远,陈修红,王军.玉米醇溶蛋白膜的制备研究[J].安徽农业科学,2012,40(35):17 314-17 315.CAO Si-yuan,CHEN Xiu-hong,WANG Jun.Preparation of zein film[J].Anhui Agricultural Sciences,2012,40(35):17 314-17 315.
[6] 崔和平,贾祥祥,鲁亚楠,等.制备条件对玉米醇溶蛋白膜水溶性的影响[J].粮食与饲料工业,2012(12):37-41.CUI He-ping,JIA Xiang-xiang,LU Ya-nan,et al.The effect of preparation conditions on the water solubility of zein membranes[J].Food and Feed Industry,2012(12):37-41.
[7] 许英一,林巍.玉米胚芽蛋白提取工艺的优化[J].食品工业,2019,40(10):88-90.XU Ying-yi,LIN Wei.Optimization of corn germ protein extraction process[J].Food Industry,2019,40(10):88-90.
[8] 崔立平.玉米胚芽油生产副产物——玉米胚芽粕中蛋白质提取的研究[D].济南:齐鲁工业大学,2012:11-12.CUI Li-ping.The by-product of corn germ oil production—The study of protein extraction from corn germ meal[D].Jinan:Qilu University of Technology,2012:11-12.
[9] 肖志刚,王娜,杨庆余,等.大豆分离蛋白膜配方及性能研究[J].沈阳师范大学学报(自然科学版),2013,31(4):476-481.XIAO Zhi-gang,WANG Na,YANG Qing-yu,et al.Study on the formula and performance of soybean protein isolate film[J].Journal of Shenyang Normal University(Natural Science Edition),2013,31(4):476-481.
[10] GHASEMLOU M,KHODAIYAN F,OROMIEHIE A,et al.Develoment and characterisation of a new biodegradable edible film made from kefiran,an exopolysaccharide obtained from kefir grains[J].Food Chemistry,2011,127(4):1 496-1 502.
[11] 李磊,牛坤,马庆一.可食性膜阻水特性的研究[J].食品科学,2008(2):145-150.LI Lei,NIU Kun,MA Qing-yi.Study on the water blocking characteristics of edible membranes[J].Food Science,2008(2):145-150.
[12] 肖永谦.VE对鲜切荸荠酶促褐变的影响[J].保鲜与加工,2021,21(10):23-28.XIAO Yong-qian.Effect of VE on enzymatic browning of fresh-cut water chestnuts[J].Fresh-keeping and Processing,2021,21(10):23-28.
[13] 崔和平.环境条件对玉米醇溶蛋白膜性能的影响研究[D].郑州:河南工业大学,2014:78-85.CUI He-ping.Research on the effect of environmental conditions on zein membrane performance[D].Zhengzhou:Henan University of Technology,2014:78-85.
[14] 贾祥祥,郭兴凤,鲁亚楠,等.制备条件对玉米醇溶蛋白膜机械性能的影响[J].粮食与饲料工业,2012(7):36-40.JIA Xiang-xiang,GUO Xing-feng,LU Ya-nan,et al.The effect of preparation conditions on the mechanical properties of zein membranes[J].Food and Feed Industry,2012(7):36-40.
[15] 孙琳琳.茶多酚脱脂豆粕膜的制备与应用研究[D].哈尔滨:东北农业大学,2017:19-20.SUN Lin-lin.Preparation and application of tea polyphenol defatted soybean meal membrane[D].Harbin:Northeast Agricultural University,2017:19-20.
[16] 孙天颖,程红,张明站,等.超声波辅助酶解玉米胚芽脱脂粕预处理条件的优化[J].中国调味品,2020,45(10):36-39.SUN Tian-ying,CHENG Hong,ZHANG Ming-zhan,et al.Optimization of pretreatment conditions for ultrasonic-assisted enzymatic hydrolysis of corn germ defatted meal[J].China Seasoning,2020,45(10):36-39.
[17] CHO S Y,LEE S Y,RHEE C.Edible oxygen barrier bilayer film pouches from corn zein and soy protein isolate for olive oil packaging[J].LWT-Food Science and Technology,2010,43(8):1 234-1 239.

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