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Position: Home > Articles > Study on preparation of hydroxypropylated-phosphate monoester waxy maize starch with freeze-thaw stabilization Science and Technology of Food Industry 2008 (5) 235-237+240

冻融稳定型羟丙基—磷酸单酯糯玉米淀粉的制备工艺研究

作  者:
张运艳;张晖;姚惠源
单  位:
江南大学食品科学与技术国家重点实验室江南大学食品学院
关键词:
糯玉米淀粉;复合变性;冻融稳定性;分子取代度
摘  要:
以糯玉米淀粉为原料,制备冻融稳定型羟丙基-磷酸单酯复合变性淀粉,并对磷酸盐浓度、羟丙基取代度、反应温度、反应时间、pH、尿素浓度、磷酸盐配比对羟丙基—磷酸糯玉米淀粉的冻融稳定性和磷酸分子取代度的影响进行了研究。通过单因素和正交实验,确定制备冻融稳定型羟丙基—磷酸单酯糯玉米淀粉的最佳工艺条件为:磷酸盐浓度30%、羟丙基取代度0.12、反应温度140℃、反应时间120min、pH5.5、尿素浓度4%、磷酸盐配比3∶1。
译  名:
Study on preparation of hydroxypropylated-phosphate monoester waxy maize starch with freeze-thaw stabilization
作  者:
ZHANG Yun-yan,ZHANG Hui,YAO Hui-yuan(State Key Laboratory of Food Science and Technology(Jiangnan University),School of Food Science and Technology,Jiangnan University,Wuxi 214122,China)
关键词:
waxy maize starch;compound modification;freeze-thaw stabilization;molar substitution
摘  要:
The waxy maize starch was used to produce the hydroxypropylated-phosphate monoester compound modification starch which had freeze-thaw stabilization.Concentration of orthophosphate,the substitution of hydroxypropylated waxy maize starch,reaction temperature,reaction time,pH,amount of urea,proportion of tow kinds of orthophosphate which effected on freeze-thaw stabilization and phosphate molar substitution of hydroxypropylated-phosphate monoester waxy maize starch were studied.By the single factor tests and orthogonal experiments,the following optimum conditions were obtained: concentration of orthophosphate 30%,substitution of hydroxypropylated waxy maize starch 0.12,reaction temperature 140℃,reaction time 120min,pH 5.5,amount of urea 4%,Na2HPO4∶NaH2PO4 3∶1.

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