摘要
为了探讨涂蜡处理对木薯常温贮藏品质的影响,该研究以木薯品种‘华南9号’块根为试材,设置在鲜木薯切成约10 cm的根段两端用吗啉脂肪酸盐果蜡(5%)涂蜡处理,以清水处理为对照,测定木薯块根在常温[(25±1)℃]贮藏期间的失重率、呼吸强度、颜色、硬度、可溶性固形物和脂肪酸含量的变化。结果表明,与对照相比,涂蜡处理显著降低了木薯常温贮藏期间的失重率(P<0.05),抑制了木薯的呼吸作用,延缓了木薯块根切口色泽L*值和硬度的降低,而对可溶性固形物没有显著影响;同时,涂蜡处理显著提高了木薯中5种脂肪酸(十三烷酸、棕榈酸、反油酸、亚油酸和α-亚麻酸)的含量(P<0.05),而对十一烷酸和硬脂酸含量没有显著影响;另外,涂蜡处理能够显著提高木薯不饱和脂肪酸的含量和脂肪酸不饱和度(P<0.05)。以上结果表明,涂蜡处理可有效保持木薯块根在常温贮藏期间的品质。
To investigate the effect of waxing on the quality of fresh cassava tuber roots during storage at ambient temperature,the tuber roots of cassava cultivar‘South China 9(SC9)’was used as test material in this study.The two ends of the root segment were treated with morpholine fatty acid salt fruit wax(5%)and the water-treated group was used as the control.The changes in weight loss rate,respiratory intensity,color,hardness,total soluble solids,and fatty acid content of cassava root segment during storage at ambient temperature[(25±1)℃]were measured.Results showed that compared with the control,waxing treatment significantly reduced the weight loss rate,inhibited the respiration,delayed the decrease of color parameter(L*value)and hardness of cassava root(P<0.05),but had no significant effect on total soluble solids.At the same time,waxing treatment significantly increased the contents of five fatty acids(tridecanoic acid,palmitic acid,elaidic acid,linoleic acid,andα-linolenic acid)and total fatty acids in cassava root(P<0.05),but had no significant effect on the contents of undecanoic acid and stearic acid.In addition,waxing treatment could significantly increase the percentage of unsaturated fatty acids and unsaturated degree of fatty acids in cassava root(P<0.05).The above results indicated that waxing treatment could effectively maintain the quality of fresh cassava root during ambient temperature storage.
作者
邓福明
高兆银
孙梦娅
喻珊
安飞飞
蔡杰
陆小静
欧文军
DENG Fuming;GAO Zhaoyin;SUN Mengya;YU Shan;AN Feifei;CAI Jie;LU Xiaojing;OU Wenjun(Hainan Tropical High-tech Research Institute Co.Ltd.,Haikou 571101,China;Institute of Tropical Bioscience and Biotechnology,Chinese Academy of Tropical Agricultural Sciences,Haikou 571101,China;Tropical Crops Genetic Resources Institute,Chinese Academy of Tropical Agricultural Sciences,Haikou 571101,China)
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2023年第12期187-193,201,共8页
Food and Fermentation Industries
基金
海南省重点研发项目(ZDYF20200101)
财政部和农业农村部:国家现代农业产业技术体系资助(CARS-11-HNOWJ)。
关键词
木薯
涂蜡处理
常温
贮藏品质
cassava
waxing treatment
ambient temperature
storage quality
