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第 8 期 王丽爽,等: 米谷蛋白对挤压淀粉复合物结构及性质的影响 ·1825·
2.8 复合物微观形态的分析 参考文献:
大米淀粉颗粒、米谷蛋白与淀粉的混合物(未 [1] LIU S D (刘思迪), WANG B L (王百龙), HUANG M L (黄敏丽),
挤压)、挤压后复合物颗粒以及复合物横截面的微观 et al. Progress in the preparation, physicochemical properties, and
application of starch-protein mixed systems[J]. Food Science (食品
结构形态如图 8 所示。由图 8 可知,挤压前,大米 科学), 2022, 43(1): 345-352.
淀粉表现为规则的颗粒状态 [20] ,而米谷蛋白呈现连 [2] WANG P, FU Y, WANG L J, et al. Effect of enrichment with stabilized
rice bran and extrusion process on gelatinization and retrogradation
续稳定的聚集现象 [26] 。挤压后,复合物表现为光滑 properties of rice starch[J]. Starch-Stärke, 2017, 69(7/8): 1600201-
的片状结构,表明二者之间发生了很好的融合,形 1600211.
[3] ROOPA S, PREMAVALLI K S. Effect of processing on starch
成均一的连续相状态。而从复合物的横截面可以看 fractions in different varieties of finger millet[J]. Food Chemistry,
出,大米淀粉和米谷蛋白通过融合聚集,表现为均 2008, 106(3): 875-882.
[4] ROMAN L, GOME Z M, HAMAKER B R, et al. Shear scission through
匀致密的微观结构,这有利于复合物基材结构与性
extrusion diminishes inter-molecular interactions of starch molecules
质的形成。其中的一些孔洞可能是加压过程中复合 during storage[J]. Journal of Food Engineering, 2018, 238: 134-140.
物中的自由水分蒸发所致。 [5] QU Z P (屈展平), REN G Y (任广跃), ZHANG Y M (张迎敏),
et al. Interaction of potato starch-wheat protein blend system and its
effect on the properties of compound noodles[J]. Journal of Food
Engineering (食品与机械), 2020, (1): 72-78.
[6] XIU L (修琳), ZHANG M (张淼), XU X Y (许秀颖), et al. Effect of
mung bean protein on gelatinization and rheological properties of
buckwheat starch[J]. Food Science (食品科学), 2020, 41(16): 57-61.
[7] EGGUM B O, CABRERA M I, JULIANO B O. Protein and lysine
digestibility and protein quality of cooked Filipino rice diets and
milled rice in growing rats[J]. Plant Foods for Human Nutrition,
1993, 43(2): 163-170.
[8] BAXTER G, BLANCHARD C, ZHAO J. Effects of prolamin on the
textural and pasting properties of rice flour and starch[J]. Journal of
Cereal Science, 2004, 40(3): 205-211.
[9] XU X, LIU W, ZHONG J, et al. Binding interaction between rice
glutelin and amylose: Hydrophobic interaction and conformational
changes[J]. International Journal of Biological Macromolecules,
2015, 81: 942-950.
图 8 大米淀粉、混合物(未挤压)、9%复合物及其横 [10] LIU H P (刘海鹏), FENG L (冯磊), LI L (李玲), et al. Preparation,
characterization and properties of lotus root starch/whey protein
截面的 SEM 图
composite film[J]. Fine Chemicals (精细化工), 2022, 39(6): 1228-1249.
Fig. 8 SEM images of glutelin/rice starch mixture (without [11] NEO Y P, RAY S, JIN J, et al. Encapsulation of food grade
extrusion) and extrusion complexes antioxidant in natural biopolymer by electrospinning technique: A
physicochemical study based on zeinegallic acid system[J]. Food
Chemistry, 2013, 136(2): 1013-1021.
3 结论 [12] WANG Y Q (王玉琦), ZHANG R C (张如春), ZHANG X (张欣),
et al. Preparing zinc enriched rice by extruding broken rice[J]. Food
(1)挤压过程中,大米淀粉的 α-1,6-糖苷键更 Science (食品科学), 2019, 40(4): 279-285.
易断裂,米谷蛋白与淀粉及其降解产物通过化学相 [13] LIU Z B (刘振彬). Study on extrusion 3D printing and post-processing
adaptability of mashed potato and its starch mixen gel system[D].
互作用(美拉德反应)形成挤压复合物。 Wuxi:Jiangnan University (江南大学), 2020.
(2)与未挤压混合物相比,挤压复合物的结晶 [14] ZHANG T T (张亭亭). Effect of rice protein-starch interaction on the
quality and digestibility of rice flour infants[D]. Nanchang: Nanchang
度下降,热稳定性低,黏弹性减弱,糊化回升特性 University (南昌大学), 2018.
发生明显降低,但水分子束缚能力增强,具有均匀 [15] XIAO Z G, WANG L S, ZHANG Y R, et al. Synthesis and
characterization of a novel rice bran protein-cerium complex for the
致密的微观形态。 removal of organophosphorus pesticide residues from wastewater[J].
(3)随着米谷蛋白含量(9%、11%、13%)的 Food Chemistry, 2020, 320: 126604-126613.
[16] WANG Y R, ZHANG B, FAN J L, et al. Effects of sodium
持续增加,挤压复合物理化特性发生改善,相对结晶
tripolyphosphate modification on the structural, functional, and
度由 2.10%增加至 3.51%,峰值黏度增加至 376.51 Cp, rheological properties of rice glutelin[J]. Food Chemistry, 2019, 281:
崩解值提升为 362.20 Cp,回生值增加至 87.14 Cp, 18-27.
[17] GUERRERO P, BEATTY E, KERRY J P, et al. Extrusion of soy
黏弹性逐渐增加,储能模量及损耗模量提升。 protein with gelatin and sugars at low moisture content[J]. Journal of
(4)挤压环境下,米谷蛋白能够对淀粉的结构 Food Engineering, 2012, 110(1): 53-59.
[18] WANG N, WU L, ZHANG F, et al. Modifying the rheological
及理化性质进行一定程度的干预,从而影响混合体 properties, in vitro digestion, and structure of rice starch by extrusion
系的性质,这为米谷蛋白/大米淀粉挤压复合物的开 assisted addition with bamboo shoot dietary fiber[J]. Food Chemistry,
2022, 375: 131900-131911.
发以及应用提供了分子水平的理论依据。 (下转第 1848 页)