FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (8): 131-136.doi: 10.7506/spkx1002-6630-201208027

• Processing Technology • Previous Articles     Next Articles

Optimization of Preparation Process for Dried Nata De Coco Using Response Surface Methodology

CAI Kun1,2,LONG Ying-jun1,LIU Si-xin1,YU Min-hua1,CHEN Tao1,LI Cong-fa1,*   

  1. (1. College of Food Science and Technology, Hainan University, Haikou 570228, China; 2. Tropical Crop Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, China)
  • Online:2012-04-25 Published:2012-03-31

Abstract: The effects of carboxymethyl cellulose sodium (CMC) vacuum infusion and hot-air drying on rehydration properties and texture after rehydration of nata de coco were investigated by one-factor-at-a-time method and response surface methodology. The results indicated that the rehydration rate of dried nata de coco could be improved by CMC vacuum infusion. The main factors that influence rehydration properties were CMC concentration, nata de coco-to-CMC ratio, drying temperature and vacuum infusion time. The optimal processing conditions were nata de coco/0.9% CMC ratio of 1:2 (m/V), vacuum infusion for 4.5 h at -0.08 MPa, and hot-air drying at 60 ℃。

Key words: nata de coco, rehydration rate, carboxymethyl cellulose sodium (CMC), hot-air drying, response surface methodology

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