当前位置: 首页 > 文章 > 热敏性珠芽魔芋葡甘聚糖可食膜配方优化 食品科学 2013,34 (16) 113-119
Position: Home > Articles > Formulation Optimization of Thermosensitive Edible Film Based on Modified Konjac Glucomannan from Amorphophallus bulbifer FOOD SCIENCE 2013,34 (16) 113-119

热敏性珠芽魔芋葡甘聚糖可食膜配方优化

作  者:
邓利玲;吴雨;秦清娟;王俏;钟耕
单  位:
西南大学食品科学学院
关键词:
珠芽魔芋;魔芋葡甘聚糖;热敏性可食膜;配方优化
摘  要:
采用珠芽魔芋精粉为原料,经羧甲基化改性得到羧甲基珠芽魔芋葡甘聚糖(CMK)。利用CMK为成膜基料,制备热敏性可食膜。采用单因素试验研究CMK用量、CMK与魔芋葡甘聚糖(KGM)的配比、增强剂海藻酸钠最适用量、增塑剂甘油最适用量、干燥温度和干燥时间对可食膜抗拉强度(TS)、断裂伸长率(E)、水蒸气透过系数(WVP)的影响,在此基础上通过四元二次通用旋转组合设计确定最佳成膜条件,并进行验证实验。结果表明:CMK用量1.60%~1.62%、KGM用量0.08%~0.09%、海藻酸钠用量0.31%~0.33%、甘油用量0.46%~0.47%、最适干燥温度70℃、时间5.0h的条件下,热敏性可食膜的TS在53.78MPa以上有95%的可能,且所得的数学模型对实际情况具有较好的预测能力。
译  名:
Formulation Optimization of Thermosensitive Edible Film Based on Modified Konjac Glucomannan from Amorphophallus bulbifer
作  者:
DENG Li-ling1,WU Yu1,QIN Qing-juan1,WANG Qiao1,ZHONG Geng1,2,(1.College of Food Science,Southwest University,Chongqing 400716,China;2.Konjac Resources Utilization Engineering Center of Chongqing Universities,Chongqing 400715,China)
关键词:
Amorphophallus bulbifer;konjac glucomannan(KGM);thermosensitive edible film;formulation optimization
摘  要:
The carboxymethyl konjac glucomannan(CMK) made from konjac glucomannan(KGM) from Amorphophallus bulbiferwas used as the film-forming material to formulate a thermosensitive edible film.The influence of CMK concentration,CMK-to-KGM ratio,sodium alginate(as reinforcer) concentration,glycerol(as plasticizer) concentration,drying temperature and time on tensile strength(TS),elongation at break(E),water vapor permeability(WVP) of edible films was investigated.These film-forming components were optimized by four-variable quadratic general rotary combination design and validated by experiments.The optimum film-forming conditions were found to be 1.60%-1.62% CMK,0.08%-0.09% KGM,0.31%0.33% sodium alginate,and drying at 70 ℃ for 5.0 h.The TS of the resulting edible film showed a 95% possibility at pressures above 53.78 MPa.Moreover,the mathematical model developed in this study had good prediction ability.

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