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Properties of Ternary Biopolymer Nanocomplexes of Zein, Sodium Caseinate, and Propylene Glycol Alginate and Their Functions of Stabilizing High Internal Phase Pickering Emulsions

Published on Aug 7, 2018in Langmuir3.68
· DOI :10.1021/acs.langmuir.8b01887
Cuixia Sun2
Estimated H-index: 2
(CAU: China Agricultural University),
Yanxiang Gao29
Estimated H-index: 29
(CAU: China Agricultural University),
Qixin Zhong31
Estimated H-index: 31
(UT: University of Tennessee)
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Abstract
A pH-cycle method based on preparing an alkaline solution of zein followed by neutralization with an acid can be used to prepare zein nanoparticles. In the present work, partial alkaline hydrolysis of propylene glycol alginate (PGA) to a lower pH was studied to prepare binary zein–PGA nanocomplexes and ternary complexes with additional sodium caseinate (NaCas). 0.5% or more PGA was sufficient to reduce the pH to 7.5 or lower, eliminating the need for titration, and resulted in simultaneous nanocomplex formation. The addition of NaCas into alkaline zein–PGA solution resulted in smaller complexes with all biopolymers, whereas adsorption on binary zein–PGA complexes was observed when NaCas was added into the neutral zein–PGA dispersions. The formation of nanocomplexes involved with hydrophobic and electrostatic attractions and hydrogen bonds and was further affected by the amount of NaCas. The ternary nanocomplexes with equal masses of zein and NaCas had an excellent capacity to prepare gel-like Pickering em...
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Cited By4
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#1Xinyue Wang (NAU: Nanjing Agricultural University)
#2Yingqun Nian (NAU: Nanjing Agricultural University)
Last.Bing Hu (NAU: Nanjing Agricultural University)H-Index: 24
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#1Liqiang Zou (NCU: Nanchang University)H-Index: 18
#2Anqi Xie (NCU: Nanchang University)H-Index: 1
Last.D. Julian McClements (UMass: University of Massachusetts Amherst)H-Index: 108
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#1Hao Zhang (ZJSU: Zhejiang Gongshang University)H-Index: 2
#2Yuying Fu (ZJSU: Zhejiang Gongshang University)H-Index: 2
Last.Xiaomeng Li (ZJSU: Zhejiang Gongshang University)H-Index: 2
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