The structural, functional and digestive characteristics of acorn starch after combined debranching and heat-moisture treatment and their relationships
文献类型： 外文期刊
作者： Wang, Ru-Meng 1 ; Xie, Qiu-Tao 3 ; Wang, Shu-Ya 4 ; Chen, Pin 1 ; He, Ting-Shi 1 ; Zhang, Bao 1 ;
作者机构： 1.Hefei Univ Technol, Engn Res Ctr Bioproc, Minist Educ, 193 Tunxi Rd, Hefei 230009, Anhui, Peoples R China
2.Hefei Univ Technol, Sch Food & Biol Engn, 193 Tunxi Rd, Hefei 230009, Peoples R China
3.Hunan Acad Agr Sci, Hunan Agr Prod Proc Inst, 199 Hongqi Rd, Changsha 410125, Hunan, Peoples R China
4.Wanfoshan Agr Comprehens Dev Co Ltd, Hefei 230009, Anhui, Peoples R China
关键词： Acorn starch; Debranching; Heat-moisture treatment; In vitro digestibility
期刊名称：INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY （ 影响因子：3.612； 五年影响因子：3.575 ）
ISSN： 0950-5423
年卷期： 2022 年 57 卷 12 期
页码：
收录情况： SCI
摘要： In this work, acorn (Quercus suber) starch was first modified by debranching, and then subjected to heat-moisture treatment (HMT) at different temperatures (90 degrees C, 100 degrees C and 110 degrees C). Debranching and HMT could facilitate the aggregation of starch samples. The short-range order and crystallinity were improved after debranching and HMT. The onset temperature (53.24 degrees C), peak temperature (63.41 degrees C), conclusion temperature (75.47 degrees C) and enthalpy change (11.38 J g(-1)) of native acorn starch increased after debranching and HMT. The solubility of native acorn starch increased after debranching, whereas the swelling power and freeze-thaw stability decreased. Compared with debranched starch, the freeze-thaw stability increased after HMT, while the swelling power and solubility decreased. Compared with native acorn starch, the water absorption capacity (WAC) was reduced after debranching, while the oil absorption capacity (OAC) was enhanced, and WAC and OAC of the debranched samples decreased after subsequent HMT. The total amount (72.98%, dry basis) of slowly digestible starch and resistant starch of native acorn starch after debranching and HMT increased significantly up to a maximum (80.36%, dry basis). These results indicated that the combination of debranching and HMT could be used as an effective strategy to improve the physicochemical properties of acorn starch.
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