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Rheological properties and gel strength of Phaseolus lunatus protein/carboxymethylated flamboyant gum systems

机译:菜豆蛋白/羧甲基化艳香胶系统的流变特性和凝胶强度

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摘要

The rheological behaviour and gel strength of hydrocolloid mixture systems (HMSs) of carboxymethylat-ed flamboyant gum (CFG) with protein hydrolysates (PHs) of Phaseolus lunatus were examined to evaluate the influence of the protein/polysaccharide ratio (2:1 and 3:1), pH (3 and 9) and concentration of solids, according to a 2~3 factorial design. The protein concentrate of P. lunatus was hydrolysed with pep-sin-pancreatin enzymes. The flow curve results were fitted to the Ostwald-de Waele model. The flow behaviour index (0.66-0.78) for all conditions studied was indicative of the shear-thinning behaviour. For the HMS, the consistency index (k) values ranged from 0.4 Pa s~n to 1.2 Pa s~n. The analyses of variance showed that the ratio of PH/CFG and pH were the main variables that had significant effect on k values (P < 0.05). Only PH system presented a weak gel-like viscoelastic behaviour. Both functional properties were affected by the protein degree of hydrolysis (DH).
机译:考察了羧甲基化艳彩胶(CFG)和菜豆蛋白水解物(PHs)的水胶体混合物系统(HMS)的流变行为和凝胶强度,以评估蛋白/多糖比(2:1和3: 1),pH(3和9)和固体浓度(根据2〜3因子设计)。用pep-sin-pancreatin酶水解P. lunatus的浓缩蛋白。流量曲线结果与Ostwald-de Waele模型拟合。在所有研究条件下的流动行为指数(0.66-0.78)表示剪切稀化行为。对于HMS,一致性指标(k)值的范围从0.4 Pa s〜n到1.2 Pa s〜n。方差分析表明,PH / CFG与pH的比值是影响k值的主要变量(P <0.05)。仅PH系统表现出弱的凝胶状粘弹性行为。两种功能特性均受蛋白质水解度(DH)的影响。

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  • 作者单位

    Facultad de Ingenieria Quimica, Universidad Autonoma de Yucatan, Periferico Norte, C.P. 97203 Merida, Yucatan, Mexico,Instituto Politecnico Nacional-UPIBI, Av. Acueducto s, Barrio La Laguna, Col. Ticoman, C.P. 07340 Mexico, DF, Mexico;

    Instituto Politecnico Nacional-CEPROBI, Km 6 Carretera Yautepec-Jojutla, Calle Ceprobi 8, Col. San Isidro, C.P. 62731 Yautepec, Morelos, Mexico;

    Facultad de Ingenieria Quimica, Universidad Autonoma de Yucatan, Periferico Norte, C.P. 97203 Merida, Yucatan, Mexico;

    Facultad de Ingenieria Quimica, Universidad Autonoma de Yucatan, Periferico Norte, C.P. 97203 Merida, Yucatan, Mexico;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Flamboyant; gums; hydrolysates; Phaseolus lunatus; rheology;

    机译:龙飞凤舞;牙龈水解物菜豆流变学;
  • 入库时间 2022-08-17 23:39:30

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