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Qixin Zhong
University of Tennessee
147Publications
31H-index
3,269Citations
Publications 147
Newest
#1Inseob Choi (UT: University of Tennessee)
#2Qixin Zhong (UT: University of Tennessee)H-Index: 31
Abstract Application of skim milk powder (SMP) in acidified beverages is limited due to precipitation and sedimentation of caseins. In this study, 5% w/v SMP dispersion was acidified to pH 2.4–3.0 using citric acid and heated at different conditions. Lowering pH resulted in dissolution of colloidal calcium phosphate from casein micelles, corresponding to lowered turbidity and reduced hydrodynamic diameter of dispersions. When heated for 10 min at different temperatures, 70 °C was the most effect...
#1Wenfei Xiong (UT: University of Tennessee)
#2Qianchun Deng (CRI: Crops Research Institute)H-Index: 17
Last.Qixin Zhong (UT: University of Tennessee)H-Index: 31
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Abstract Protein-polysaccharide complex coacervates self-assembled via electrostatic interactions generally exhibit superior functional properties than the individual biopolymer. Herein, the main objective of this work was to investigate physicochemical properties of complex coacervates formed with ovalbumin (OVA) and carboxymethylcellulose (CMC) with two different charge densities (CMC0.7, CMC1.2) at pH 3.0, 3.5, and 4.0 and the properties of coacervates stabilizing emulsions with a high oil co...
#1Anyi Wang (UT: University of Tennessee)
#2Jun Lin (UT: University of Tennessee)H-Index: 21
Last.Qixin Zhong (UT: University of Tennessee)H-Index: 31
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Abstract Amorphous sucrose, as an efficient protectant during dehydration of probiotics, can be prepared by spray drying aqueous solutions with both sucrose and whey protein isolate (WPI). The objective of this study was to characterize the synergistic effect of WPI and sucrose on protecting the survival of powdered Lactobacillus salivarius NRRL B-30514 prepared by directly mixing a cell suspension with spray-dried WPI/sucrose powders (WSP) with different WPI:sucrose mass ratios. In the prepared...
#1Ren Wang (Jiangnan University)H-Index: 11
#2Tingting Wang (Jiangnan University)
Last.Tao Wang (Jiangnan University)H-Index: 5
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ABSTRACT Contamination of cereal grains by heavy metals is becoming a serious threat to human health, especially in the central regions of China. Herein, we report drastic changes in the supramolecular nanostructures of rice albumins (RAs) after binding with Cu(II), Cd(II), and Pb(II). Atomic force microscopy and scanning electron microscopy revealed that Cu(II) initiated an immediate precipitation of RAs, whereas Cd(II) and Pb(II) promoted the formation of core-satellite structures with a core ...
#1Hao ZhangH-Index: 30
#2Ren Wang (Jiangnan University)H-Index: 11
Last.Qixin Zhong (UT: University of Tennessee)H-Index: 31
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Abstract Enzymatically modified starch with controllable digestibility may find unique applications. In the present study, side chains of amylopectin were elongated by amylosucrase, followed by debranching with pullulanase to produce linear chains that self-assembled to form microparticles containing aggregated nanoparticles. Amylosucrase treatment for a longer time resulted in longer branches that were not changed after the subsequent modification by pullulanase. The A-type crystalline structur...
#1Huaiqiong Chen (UT: University of Tennessee)H-Index: 11
#2Yue Zhang (UT: University of Tennessee)H-Index: 19
Last.Qixin Zhong (UT: University of Tennessee)H-Index: 31
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Abstract To evaluate the feasibility of acidified sodium benzoate (NaB) as alternative washing solutions of fresh produce, the survival of inoculated pathogens, the background molds and yeasts counts, and quality parameters were compared during 4 and 21 °C storage of cherry tomatoes washed with 3000 ppm NaB at pH 2.0, 200 ppm free chlorine at pH 6.5, water adjusted to pH 2.0, and distilled water. The acidified NaB solution was the most effective in reducing the population of Escherichia coli O15...
#2Qixin Zhong (UT: University of Tennessee)H-Index: 31
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To deliver lactase in milk, dispersible capsules were fabricated by anti-solvent precipitation of zein to form a zein-lactase core and a shell of low-methoxyl sugar beet pectin cross-linked by Ca2+, involving electrostatic, hydrophobic, hydrogen bonding, and Ca2+ bridging forces. At optimal conditions, an encapsulation efficiency of 93.0% and Z-average diameter of 652.7 nm were observed, and spherical particles smaller than 200 nm were observed in scanning electron microscopy. Contrasting with c...
#1Yongguang Guan (UT: University of Tennessee)H-Index: 11
#2Qixin Zhong (UT: University of Tennessee)H-Index: 31
Abstract Fabrication of stable aqueous foams is significant to various food and non-food applications. In the present study, we report aqueous foams with a volume maintained for 14 days after whipping suspensions with intercalated montmorillonite (MMT) platelets coated with sodium caseinate (NaCas). Intercalating MMT preheated at 60 °C for 1 h with room temperature NaCas solution resulted in a good extent of intercalated and exfoliated MMT platelets coated with NaCas. The high extent of MMT inte...
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