Effects of different storage conditions on the quality of sweet potato leaf pickles

Authors

LIU Xi-ming, School of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023 , China ；Luoyang Engineering and Technology Research Center of Microbial Fermentation, Luoyang, Henan 471023 , China
HE Jia, School of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023 , China ；Luoyang Engineering and Technology Research Center of Microbial Fermentation, Luoyang, Henan 471023 , China
RUI Peng, School of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023 , China ；Luoyang Engineering and Technology Research Center of Microbial Fermentation, Luoyang, Henan 471023 , China

Abstract

Objective:This study aimed to explore the preservation conditions and quality changes of sweet potato leaf sauerkraut fermented by lactic acid bacteria.Methods:After vacuum packaging, the pH value, lactic acid content, nitrite content, colony number, color difference and sensory score of sweet potato leaves were compared under four different kinds of storage conditions, including 25 ℃ at room temperature, 4 ℃ at low temperature, 4 ℃ after pasteurization at 80 ℃-15 min, and 4 ℃ after pasteurization at 85 ℃-10 min.Results:When stored at 25 ℃, the luminance decreased the fastest, and the color became darker at 60 days. The number of yeasts was the most after 30 days at 4 ℃, and the number of lactic acid bacteria was the most after 45 days; After pasteurization for 90 days at 80 ℃-15 min, the number of Escherichia coli was the least, and the sensory score reached the edible threshold. After pasteurization for 75 days at 85 ℃-10 min, the total number of bacteria was the least and the sensory score was qualified; pH value was negatively correlated with nitrite, and positively correlated with L value and sensory score; Lactic acid bacteria were positively correlated with yeast; E. coli and total bacteria, and the sensory score was the largest in the first principal component.Conclusion:After pasteurization at 80 ℃-15 min and storage at 4 ℃, the main microorganisms were lactic acid bacteria, with other indicators met the safety standards, and the sensory quality was stable. This condition is more suitable for the storage of pickled cabbage with lasting for 90 days.

Publication Date

7-7-2022

First Page

173

Last Page

179

DOI

10.13652/j.issn.1003-5788.2022.02.029

Recommended Citation

Xi-ming, LIU; Jia, HE; and Peng, RUI (2022) "Effects of different storage conditions on the quality of sweet potato leaf pickles," Food and Machinery: Vol. 38: Iss. 2, Article 29.
DOI: 10.13652/j.issn.1003-5788.2022.02.029
Available at: https://www.ifoodmm.cn/journal/vol38/iss2/29

References

[1] 王秋亚,薛航.红薯叶有效成分的提取及开发应用研究进展[J].食品工业,2018,39(7):260-263.WANG Qiu-ya,XUE Hang.Research progress on extraction,development and application of effective components from sweet potato leaves[J].Food Industry,2018,39(7):260-263.
[2] 上海纳德生物科技有限公司.一种保健挂面:CN201710349398.3[P].2017-10-20.Shanghai Nader Biotechnology Limited Company.A health care noodle:CN201710349398.3[P].2017-10-20.
[3] 李兴泰.红薯叶保健茶制作法[J].农村新技术,2010(18):62.LI Xing-tai.The method of making sweet potato leaf health tea[J].New Rural Technology,2010(18):62.
[4] 崔松林.乳酸菌接种发酵酸菜的亚硝酸盐含量影响因素研究[J].安徽农业科学,2014,42(14):4 415-4 417.CUI Song-lin.Study oninfluencing factors of nitrite content in fermented sauerkraut inoculated with lactic acid bacteria[J].Anhui Agricultural Sciences,2014,42(14):4 415-4 417.
[5] 孟繁博,张万萍,吴康云.接种发酵对酸菜品质的影响[J].食品与机械,2017,33(3):179-183,206.MENG Fan-bo,ZHANG Wan-ping,WU Kang-yun.Effects of inoculation and fermentation on the quality of sauerkraut[J].Food & Machinery,2017,33(3):179-183,206.
[6] RAO Yu,WANG Meng,JIANG Yun-Lu,et al.Isolation of bacteriocinogenic lactic acid bacteria for biopreservation of Chinese traditional sichuan pickle[J].Food Science,2015,36(3):171-177.
[7] 宋文华,何佳,袁江月,等.不同乳杆菌强化发酵红薯叶及其酸菜品质的研究[J].食品与机械,2020,36(2):193-198,236.SONG Wen-hua,HE Jia,YUAN Jiang-yue,et al.Study on the quality of sweet potato leaves and pickled cabbage fermented by different Lactobacillus[J].Food & Machinery,2020,36(2):193-198,236.
[8] 闫凯.泡菜发酵工艺及贮藏性的研究[D].武汉:华中农业大学,2013:46-47.YAN Kai.Study on fermentation technology and preservation of pickles[D].Wuhan:Huazhong Agricultural University,2013:46-47.
[9] 谭小琴,段珍珍,周才琼.低温贮藏对真空包装酸肉食用卫生及感官品质的影响及酸肉保质期预测[J].云南农业大学学报(自然科学),2020,35(5):871-877.TAN Xiao-qin,DUAN Zhen-zhen,ZHOU Cai-qiong.Effect of low temperature storage on edible hygiene and sensory quality of vacuum packaged Sour Meat and prediction of its shelf life[J].Journal of Yunnan Agricultural University(Natural Science),2020,35(5):871-877.
[10] 黄慧福,肖玉雪.乳酸菌发酵对富源酸菜品质及安全性的影响[J].食品与机械,2019,35(5):191-194,201.HUANG Hui-fu,XIAO Yu-xue.Effect of lactic acid bacteria fermentation on the quality and safety of Fuyuan sauerkraut[J].Food & Machinery,2019,35(5):191-194,201.
[11] 郝卓莉.酸菜发酵期间细菌群落结构动态变化分析[J].中国酿造,2020,39(7):56-61.HAO Zhuo-li.Dynamic changes of bacterial community structure during fermentation of sauerkraut[J].Brewed in China,2020,39(7):56-61.
[12] 张锐,王琛,张晓黎,等.发酵及贮藏期影响酸菜品质的因素[J].食品研究与开发,2020,41(23):174-178.ZHANG Rui,WANG Chen,ZHANG Xiao-li.Factors affecting the quality of sauerkraut during fermentation and storage[J].Food Research & Development,2020,41(23):174-178.
[13] ZHOU Qi,ZANG Shi-zhu,ZHAO Zi-nan,et al.Dynamic changes of bacterial communities and nitrite character during northeastern Chinese sauerkraut fermentation[J].Food Science & Biote-chnology,2018,27:79-85.
[14] 张其圣,陈功,申文熹,等.低盐泡菜乳酸菌群落演变及其优势菌群的探讨[J].中国食品学报,2018,18(9):109-119.ZHANG Qi-sheng,CHEN Gong,SHEN Wen-xi,et al.The evolution of lactic acid bacteria community in low salt pickles and Discussion on its dominant flora[J].Chinese Journal of Food Science,2018,18(9):109-119.
[15] 任俊琦,贺稚非,赵季,等.接种发酵泡菜及其低温贮藏微生物变化规律[J].食品与发酵科技,2009,45(5):38-41.REN Jun-qi,HE Zhi-fei,ZHAO Ji,et al.Changes of microorganisms in fermented pickles inoculated and preserved at low temperature[J].Food & Fermentation Technology,2009,45(5):38-41.
[16] 胡盼盼,李军,王莉,等.不同杀菌技术对鲜榨苹果汁贮藏品质的影响[J].江苏农业科学,2017,45(21):196-199.HU Pan-pan,LI Jun,WANG Li,et al.Effects of different sterilization techniques on the storage quality of fresh apple juice[J].Jiangsu Agricultural Science,2017,45(21):196-199.
[17] 毕双同.果蔬加工过程中的褐变及护色措施[J].农业与技术,2018,38(23):22-23.BI Shuang-tong.Browning and color protection measures and vegetable processing[J].Agriculture & Technology,2018,38(23):22-23.
[18] 张静,李阿敏,张碧莹,等.贮藏条件对低盐方便榨菜品质及贮藏特性的影响[J].食品与发酵工业,2017,43(3):239-246.ZHANG Jing,LI A-min,ZHANG Bi-ying,et al.Effects of storage conditions on the quality and storage characteristics of low salt instant mustard[J].Food & Fermentation Industry,2017,43(3):239-246.
[19] 曹秋阁.发酵酸菜贮藏过程中品质变化规律及防腐护色的研究[D].哈尔滨:东北农业大学,2014:14-16.CAO Qiu-ge.Study on quality change and color protection of fermented sauerkraut during preservation[D].Harbin:Northeast Agricultural University,2014:14-16.
[20] 高悦,江依,赖璐莹,等.超高压和热处理酸辣藕丁菜肴品质变化及货架期预测[J].食品与发酵工业,2020,46(22):134-141.GAO Yue,JIANG Yi,LAI Lu-ying,et al.Quality change and shelf life prediction of hot and sour lotus root dish by high hydrostatic pressure and heat treatment[J].Food & Industries,2020,46(22):134-141.
[21] 张秀凤,魏秀妍.菜肴中亚硝酸盐含量变化的研究[J].食品安全导刊,2021(25):102-103,105.ZHANG Xiu-feng,WEI Xiu-yan.Study on the change of nitrite content in dishes[J].Food Safety Guide,2021(25):102-103,105.
[22] 戴瀚铖,成纪予.不同品种鲜切桃贮藏期品质变化与主成分分析[J].包装工程,2021,42(19):85-92.DAI Han-cheng,CHENG Ji-yu.Quality change and principal component analysis of fresh-cut peach varieties during storage[J].Packaging Engineering,2021,42(19):85-92.