Spray drying of reconstituted skim milk fermented with Lactobacillus rhamnosus GG: control of glass transition and stickiness
文献类型： 外文期刊
作者： Kim, Hae 1 ; Letona, Andres 2 ; Lim, Dayoung 3 ; Yu, Daeung 4 ; Han, Nam Soo 5 ; Zhao, Dong 6 ; Chung, Donghwa 1 ;
作者机构： 1.Seoul Natl Univ, Grad Sch Int Agr Technol, Food Technol Major, Pyeongchang 25354, South Korea
2.Seoul Natl Univ, Inst Food Industrializat, Inst Green Bio Sci & Technol, Pyeongchang 25354, South Korea
3.Kolmar BNH Co Ltd, Overseas Business Div, Seoul 06652, South Korea
4.Changwon Natl Univ, Dept Food & Nutr, Changwon Si 51140, South Korea
5.Chungbuk Natl Univ, Dept Food Sci & Biotechnol, Cheongju 28644, South Korea
6.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Key Lab Funct Foods, Guangdong Key Lab Agr Prod Proc,Minist Agr & Rural, Guangzhou 510610, Peoples R China
7.Seoul Natl Univ, Ctr Food & Bioconvergence, Seoul 08826, South Korea
关键词： Spray drying; Lactobacillus rhamnosus GG; Reconstituted skim milk; Glass transition; Stickiness
期刊名称：FOOD SCIENCE AND BIOTECHNOLOGY （ 影响因子：2.4； 五年影响因子：3.2 ）
ISSN： 1226-7708
年卷期： 2024 年
页码：
收录情况： SCI
摘要： The effects of glass transition and stickiness on the direct spray drying of reconstituted skim milk (RSM) fermented with Lactobacillus rhamnosus GG (LGG) were investigated. The fermented RSM did not spray dry properly due to severe wall depositions; however, it dried well (comparable to the control; RSM with resuspended LGG cells) when skim milk powder (SMP) was added. Adding SMP significantly increased the glass transition and sticky point temperatures of spray-dried powder, ranging from 18.2 to 72.4 degrees C and 34.5 to 78.5 degrees C, respectively, in a water activity range of 0-0.33. By adding SMP, droplets quickly shifted from a sticky plastic to a non-sticky glassy state during drying, resulting in reduced wall deposition. Although this spray-dried powder exhibited relatively high moisture sorption and lactose crystallization, the correlations between glass transition, stickiness, and moisture sorption suggested that its storage stability at 25 degrees C may be on par with the control powder.
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