小麦(T. aestivum)某些栽培品种的物理化学、流变学和结构特性

IF 3 3区 农林科学 Q2 FOOD SCIENCE & TECHNOLOGY
Jyoti Narwal, Ritika B. Yadav, Baljeet S. Yadav
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引用次数: 0

摘要

对小麦粉的理化特性和面团的流变特性进行表征,对于预测加工行为、功能性和最终产品的开发十分必要。本研究采用差示扫描量热法、糊化分析、傅立叶变换红外光谱、X 射线衍射研究和流变学测量来分析不同品种的小麦粉。不同栽培品种的热参数和糊化参数差异显著(p ≤ 0.05),且与直链淀粉含量呈负相关。所有小麦粉的傅立叶变换红外光谱在 1540 cm-1 和 1420 cm-1 处的吸收峰强度较弱,与酰胺 II 和酰胺 III 带相关。相对结晶度与 HPV 和 CPV(热粘度和冷粘度)呈显著正相关,与直链淀粉含量呈负相关。通过面团的振幅扫描(AS)、频率扫描(FS)和蠕变恢复试验分析了流变特性。AS/FS结果显示,面团呈弱凝胶状结构,反映出面团的弹性大于粘性。Gʹ和Gʹʹ与粘贴粘度(即峰值(PV)、CPV和分解粘度)呈正相关。复原的粘弹顺应性(J1)与质地参数(即咀嚼性和胶粘性)呈显著负相关。主成分分析(PCA)反映了 71% 的累积方差,PC1 占最大方差(34%),PV、HPV、CPV、Tp(峰值温度)、1047/1022 cm-1、结晶度和 G' 是主要因子。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Physicochemical, rheological and structural properties of selected cultivars of wheat (T. aestivum)

Physicochemical, rheological and structural properties of selected cultivars of wheat (T. aestivum)

The characterization of the physicochemical properties of wheat flour and the rheological characteristics of dough is necessary to predict processing behavior, functionality, and end-product development. Differential scanning calorimetry, pasting analysis, FTIR spectroscopy, X-ray diffraction study, and rheological measurements were used to analyze the wheat flour of different cultivars. The thermal and pasting parameters varied significantly (p ≤ 0.05) among the cultivars and showed a negative correlation with amylose content. The FTIR spectra of all wheat flour showed a weaker intensity of absorption peak at 1540 cm–1 and 1420 cm–1 associated with amide II and amide III bands. The relative crystallinity showed a significant positive correlation with HPV and CPV (hot and cold paste viscosities) and a negative correlation with amylose content. The rheological characteristics were analyzed by amplitude sweep (AS), frequency sweep (FS), and creep-recovery test of dough. The AS/FS results showed a weak gel-like structure reflecting a more elastic nature than viscous behavior. Gʹ and Gʹʹ positively correlated with pasting viscosities i.e., peak (PV), CPV, and breakdown viscosities. Viscoelastic compliance (J1) of recovery showed a significant negative correlation with textural parameters, i.e., chewiness and gumminess. Principal component analysis (PCA) reflected 71% of the cumulative variance and PC1 accounted for maximum variance (34%) with PV, HPV, CPV, Tp (peak temperature), 1047/1022 cm–1, crystallinity, and G’ as the main factors.

Graphical abstract

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来源期刊
European Food Research and Technology
European Food Research and Technology 工程技术-食品科技
CiteScore
6.60
自引率
3.00%
发文量
232
审稿时长
2.0 months
期刊介绍: The journal European Food Research and Technology publishes state-of-the-art research papers and review articles on fundamental and applied food research. The journal''s mission is the fast publication of high quality papers on front-line research, newest techniques and on developing trends in the following sections: -chemistry and biochemistry- technology and molecular biotechnology- nutritional chemistry and toxicology- analytical and sensory methodologies- food physics. Out of the scope of the journal are: - contributions which are not of international interest or do not have a substantial impact on food sciences, - submissions which comprise merely data collections, based on the use of routine analytical or bacteriological methods, - contributions reporting biological or functional effects without profound chemical and/or physical structure characterization of the compound(s) under research.
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