title: Effects of chitin nano-whiskers on the gelatinization and retrogradation of maize and potato starches.
abstract: Starch is very prone to retrogradation after gelatinization. Inhibition of starch retrogradation has been an important factor in improving the quality of food. For the first time, we investigated the effect of nano-materials, represented by chitin nano-whiskers (CNWs), on the short- and long-term retrogradation of maize and potato starches. Rapid Visco-Analyser results showed that the addition of CNWs significantly decreased the setback values of maize and potato starches, which suggested that CNWs could retard the short-term retrogradation of starch. Differential scanning calorimetry and X-ray diffraction results showed that the percentage of retrogradation of maize and potato starches significantly decreased (P<0.05), suggesting the inhibition of long-term retrogradation. The CNWs could be used as a new inhibitor of starch retrogradation to develop starch-based food with longer shelf life.
authors: School of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China.
authors: Na
authors: N
authors: Ji
authors: School of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China.
authors: Chengzhen
authors: C
authors: Liu
authors: School of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China.
authors: Shuangling
authors: S
authors: Zhang
authors: School of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China.
authors: Jing
authors: J
authors: Yu
authors: School of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China.
authors: Liu
authors: L
authors: Xiong
authors: School of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China. Electronic address: phdsun@163.com.
authors: Qingjie
authors: Q
authors: Sun
mesh_terms: D000818:Animals; D002152:Calorimetry, Differential Scanning; D002686:Chitin / Q000737:chemistry*; D005780:Gelatin / Q000737:chemistry*; D011198:Solanum tuberosum / Q000737:chemistry*; D013213:Starch / Q000737:chemistry*; D014961:X-Ray Diffraction; D003313:Zea mays / Q000737:chemistry*
chemical_list: D002686:Chitin; D005780:Gelatin; D013213:Starch
keywords: Crystallinity; Long-term; Pasting; Retrogradation; Short-term