naa a22 4500 510726348 CHVBK 20180411082936.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s11947-011-0739-8 doi (NATIONALLICENCE)springer-10.1007/s11947-011-0739-8 Inhibitory Effects of Green Tea Polyphenols on the Retrogradation of Starches from Different Botanical Sources [Elektronische Daten] [Huaxi Xiao, Qinlu Lin, Gao-Qiang Liu, Yue Wu, Wei Wu, Xiangjin Fu] This paper aims at investigating the effects of green tea polyphenols (GTPs) on the retrogradation of potato, rice, and maize starches. Starch/GTPs mixing ratios were 2/0, 2/0.1, 2/0.2, and 2/0.3 (w/w) that equated with starch containing 0%, 5%, 10%, and 15% GTPs (based on starch weight), respectively. The analytic samples had a water-starch/GTPs ratio of 2:1. The effects of GTPs on the retrogradation of these starches were analyzed by differential scanning calorimetry (DSC) and X-ray diffraction (XRD). The analysis of DSC indicates that the temperature and enthalpy of gelatinization of all the tested starches decreased as the GTPs level increased. After storage at 4°C, retrogradation enthalpy (ΔH ret) for potato starches with 5%, 10%, and 15% GTPs appeared after 10days of storage, however ΔH ret for rice and maize starches with 10% and 15% GTPs did not appear until storage of 20days, and both the ΔH ret and degree of retrogradation of the three starches significantly decreased with the increased level of GTPs. After 10days of storage at 4°C, the analysis of XRD shows that the intensity of X-ray diffraction peaks of potato starch gradually decreased with the concentration of GTPs increasing, and rice and maize starch gels with 10% and 15% GTPs had almost no recrystallization of the retrogradation. It is concluded that the addition of GTPs considerably inhibits the retrogradation of rice, maize, and potato starches. Springer Science+Business Media, LLC, 2011 Green tea polyphenols nationallicence Rice starch nationallicence Maize starch nationallicence Potato starch nationallicence Retrogradation nationallicence Differential scanning calorimetry nationallicence X-ray diffraction nationallicence Xiao Huaxi National Engineering Laboratory for Rice and By-products Further Processing, Central South University of Forestry & Technology, 410004, Changsha, People's Republic of China aut Lin Qinlu National Engineering Laboratory for Rice and By-products Further Processing, Central South University of Forestry & Technology, 410004, Changsha, People's Republic of China aut Liu Gao-Qiang National Engineering Laboratory for Rice and By-products Further Processing, Central South University of Forestry & Technology, 410004, Changsha, People's Republic of China aut Wu Yue National Engineering Laboratory for Rice and By-products Further Processing, Central South University of Forestry & Technology, 410004, Changsha, People's Republic of China aut Wu Wei National Engineering Laboratory for Rice and By-products Further Processing, Central South University of Forestry & Technology, 410004, Changsha, People's Republic of China aut Fu Xiangjin National Engineering Laboratory for Rice and By-products Further Processing, Central South University of Forestry & Technology, 410004, Changsha, People's Republic of China aut Food and Bioprocess Technology Springer US; http://www.springer-ny.com 6/8(2013-08-01), 2177-2181 1935-5130 6:8<2177 2013 6 11947 https://doi.org/10.1007/s11947-011-0739-8 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11947-011-0739-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xiao Huaxi National Engineering Laboratory for Rice and By-products Further Processing, Central South University of Forestry & Technology, 410004, Changsha, People's Republic of China aut NATIONALLICENCE 700 1- Lin Qinlu National Engineering Laboratory for Rice and By-products Further Processing, Central South University of Forestry & Technology, 410004, Changsha, People's Republic of China aut NATIONALLICENCE 700 1- Liu Gao-Qiang National Engineering Laboratory for Rice and By-products Further Processing, Central South University of Forestry & Technology, 410004, Changsha, People's Republic of China aut NATIONALLICENCE 700 1- Wu Yue National Engineering Laboratory for Rice and By-products Further Processing, Central South University of Forestry & Technology, 410004, Changsha, People's Republic of China aut NATIONALLICENCE 700 1- Wu Wei National Engineering Laboratory for Rice and By-products Further Processing, Central South University of Forestry & Technology, 410004, Changsha, People's Republic of China aut NATIONALLICENCE 700 1- Fu Xiangjin National Engineering Laboratory for Rice and By-products Further Processing, Central South University of Forestry & Technology, 410004, Changsha, People's Republic of China aut NATIONALLICENCE 773 0- Food and Bioprocess Technology Springer US; http://www.springer-ny.com 6/8(2013-08-01), 2177-2181 1935-5130 6:8<2177 2013 6 11947 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer