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潮州柑果皮多糖对凝固型酸奶冷藏期品质的影响

Effects of Citrus reticulate Blanco cv.Bonkan Peels Polysaccharides on Set Yogurt Quality during Refrigerated Storage Life
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摘要 以潮州柑果皮多糖为原料,通过评价凝固型酸奶的理化和感官特性,探讨潮州柑果皮多糖添加量对酸奶冷藏过程中品质的影响。研究结果表明:在7 d的冷藏期内,添加潮州柑果皮多糖可提高酸奶的可溶性固形物含量、黏度、持水力和悬浮稳定性,降低酸奶的乳清析出率;当多糖添加量为2.0%时,酸奶的综合品质最佳。冷藏第7天,添加2.0%多糖的酸奶pH值为4.12,可滴定酸度为96.61°T;相比对照组,可溶性固形物含量、黏度、持水力和悬浮稳定性分别提高了9.08%、40.59%、25.41%和145.83%,乳清析出率降低了55.37%。另外,相比其他组,添加1.5%和2.0%潮州柑果皮多糖的酸奶感官评分更高。因此,潮州柑果皮多糖可作为一种天然稳定剂可用于提高冷藏期凝固型酸奶品质。 With Citrus reticulate Blanco cv.Bonkan peels polysaccharides(CPP)as research materials,and the effects of its addition on the set yogurt quality during refrigerated storage life were investigated by analyzing the physicochemical and organoleptic properties of the yogurt.The results showed that the addition of CPP could increase the content of soluble solids,improve the viscosity,water retention and suspension stability,and reduce the whey separation rate of the yogurt during 7 days of refrigerated storage.The comprehensive quality of the yogurt reached the best at a CPP content of 2%.On the 7th day of refrigeration,in the yogurt with 2.0%CPP,the pH value and titratable acidity were 4.12 and 96.61°T,separately.Compared with the control group,the content of soluble solids,viscosity,water retention,and suspension stability of the experi⁃mental group showed an increase of 9.08%,40.59%,25.41%,and 145.83%,respectively,and the whey separation rate decreased by 55.37%.In addition,the organoleptic scores of the yogurt added with 1.5%and 2.0%CPP were higher than the scores of the yogurt in other groups.Therefore,Citrus reticulate Blanco cv.Bonkan peels polysaccharides could be applied as a natural stabilizer to improve the quality of set yogurt dur⁃ing refrigerated storage life.
作者 梁欣 梁贵强 丘苑新 肖更生 王琴 彭进明 LIANG Xin;LIANG Guiqiang;QIU Yuanxin;XIAO Gengsheng;WANG Qin;PENG Jinming(Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology,College of Light Industry and Food Science,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,Guangdong,China;Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food,Ministry of Agriculture and Rural Affairs,Guangzhou 510225,Guangdong,China)
出处 《食品研究与开发》 CAS 2024年第19期60-66,共7页 Food Research and Development
基金 广东省重点领域研发计划项目(2021B0707060001) 广东省科技计划项目(2022B0202160004) 广东省区域联合基金⁃青年基金项目(2021A1515110660) 广东省驻镇帮镇扶村科技特派员项目(KTP20210380)。
关键词 潮州柑果皮 多糖 凝固型酸奶 感官特性 冷藏期 Citrus reticulate Blanco cv.Bonkan peels polysaccharide set yogurt sensory characteristic re⁃frigerated storage life
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