Structure, physical and antioxidant properties of quinoa protein /hsian-tsao gum composite biodegradable active films

Zhao, Yating; Chen, Fenglian; Gao, Chengcheng; Feng, Xiao; Tang, Xiaozhi

doi:10.1016/j.lwt.2021.112985

Cited by 12 publications

(4 citation statements)

References 40 publications

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“…In China, hsian-tsao is generally used for producing grass jelly ( 17 ) because of its abundant natural colloid, and it also serves as an indispensable raw material in well-known brands of herbal tea, such as Jia Duo Bao and Wong Lo Kat. Related studies on the antioxidant activity of phenolic compounds isolated from hsian-tsao, hsian-tsao gum, and hsian-tsao gum composite films have been conducted ( 17 – 20 ). The alleviation of heat stress in fruit flies by hsian-tsao through antioxidant activity has not been reported.…”

Section: Introductionmentioning

confidence: 99%

Hsian-Tsao (Mesona chinensis Benth.) Extract Improves the Thermal Tolerance of Drosophila melanogaster

Huang

Cai

et al. 2022

Front. Nutr.

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Global warming has prompted scientific communities to consider how to alleviate thermal stress in humans and animals. The present study assessed the supplementation of hsian-tsao extract (HTE) on thermal stress in Drosophila melanogaster and preliminarily explicated its possible physiological and molecular mechanisms. Our results indicated that the lethal time for 50% of female flies fed on HTE was significantly longer than that of male flies at the same heat stress temperature. Under thermal stress, the survival time of females was remarkably increased in the HTE addition groups compared to the non-addition group. Thermal hardening by acute exposure to 36°C for 30 min (9:00 to 9:30 a.m.) every day could significantly prolong the longevity of females. Without thermal hardening, HTE increased the antioxidant capacity of females under heat stress, accompanied by an increment of catalase (CAT) activity, and the inhibition for hydroxyl radicals (OH⋅) and superoxide anions (⋅O2–). Superoxide dismutase (SOD) activity and the inhibition for ⋅O2– was significantly affected by thermal hardening in the non-HTE addition groups, and significant differences were shown in CAT and SOD activities, and the inhibition for ⋅O2– among groups with thermal hardening. After heat exposure, heat shock protein 70 (Hsp70) was only up-regulated in the group with high levels of added HTE compared with the group without and this was similar in the thermal hardening group. It was concluded that the heat stress-relieving ability of HTE might be partly due to the enhancement of enzymatic activities of SOD and CAT, and the inhibition for OH⋅ and ⋅O2–. However, the expression levels of Hsp70 were not well related to thermal tolerance or heat survival.

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Section: Introductionmentioning

confidence: 99%

Hsian-Tsao (Mesona chinensis Benth.) Extract Improves the Thermal Tolerance of Drosophila melanogaster

Huang

Cai

et al. 2022

Front. Nutr.

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“…The mechanical properties used to quantify the strength and flexibility of degradable films against external forces (including TS and EBA) are directly related to the inter-molecular interactions of polymer materials and the preparation conditions of the composite film [10] .…”

Section: Resultsmentioning

confidence: 99%

“…The tensile strength (TS) and elongation at break (EBA) of the film samples (0.2 cm × 0.6 cm) were analyzed using a Texture Analyzer (Vienna Court, Lamas Road, Godalming GU7 1YL, UK) following the method reported previously [10] . The test probe was A/TG, the clamping distance was 30 mm, and the test speed was 2 mm/s.…”

Section: Methodsmentioning

confidence: 99%

“…Taken together, this study takes the advantage of stabilizing effect of one compound for another to prepare an active packaging film (TP-loaded Pul/Tre composite film) with excellent performance. Interestingly, most polysaccharide-based biodegradable films have distinct molecular structures that are primarily maintained by inter-molecular and intra-molecular hydrophobic interactions, hydrogen bonds, disulfide bonds, electrostatic interactions, which also influence the mechanical and barrier properties of the films [10] . Different modification methods have been applied to improve the inter- and intra-molecular interactions, such as Maillard reaction, chemical cross-linking, ion gel, and physical processing such as pressure and electrospinning [11] .…”

Section: Introductionmentioning

confidence: 99%

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