shiyin Guo

Prof. shiyin Guo


Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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28 February 2020 in Foods
Verified
Journal Article
Open access
PDF file
QLQing-ming Li
Qing-ming Li
YLYan Li
Yan Li
JZjinhao zou
jinhao zou
SGshiyin Guo
shiyin Guo
FWFeng Wang
Feng Wang
XSXiao-Jun Su
Xiao-Jun Su
Impacts of wheat flour substituted with various levels of Chinese yam (Dioscorea opposita Thunb.) flour (from 0% to 25%) on the dough rheological characteristics, gluten structure, baking performance, and antioxidant properties of bread were investigated. The water absorption increased significantly (p < 0.05), while development time and stability decreased remarkably (p < 0.05) as the proportion of yam flour increased. SEM results indicated that the addition of yam flour destroyed the gluten network structure in the dough. Fourier Transform Infrared Spectroscopy (FTIR) spectra showed that addition of yam flour decreased the content of α-helix and β-sheet in gluten. With the increase in the proportion of yam flour, the specific volume and overall acceptability decreased (p < 0.05) whereas the total phenolics content (TPC), polysaccharides content, total flavonoids content (TFC), allantoin content, The 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging capability, fractal dimension, and hardness increased (p < 0.05). Overall, breads made of wheat flour replacement with no more than 15% Guihuai number 2 yam flour were of a high quality and had more antioxidant properties. These showed that Guihuai number 2 had broad application prospects in baked products.

20 July 2023 in Molecules
Verified
Journal Article
Open access
PDF file
LLLiru Luo
Liru Luo
WFWei Fan
Wei Fan
JQJingping Qin
Jingping Qin
SGshiyin Guo
shiyin Guo
Hang XiaoHang Xiao
Hang Xiao
ZTZhonghai Tang
Zhonghai Tang
Taking the extraction yield of Bletilla striata polysaccharide (BSP) as the index and taking the type of deep eutectic solvents (DESs), extraction time, extraction temperature, DES water content, and solid–liquid ratio as the investigation factors, single-factor and Box–Behnken response surface tests were carried out to optimize the extraction process of BSP. Thus, the antioxidant activity of BSP on DPPH radicals, ABTS radicals and ferric reducing antioxidant power were determined. The results showed that the most suitable deep eutectic solvent was DES-2, namely choline chloride-urea. The optimal extraction conditions for BSP were an extraction time of 47 min, extraction temperature of 78 °C, water content of 35%, and solid–liquid ratio of 1:25. Under this optimized condition, the extraction yield of BSP was able to reach (558.90 ± 8.83) mg/g, and recycling studies indicated the good cycle stability of the DES. Antioxidant results showed that BSP had superior antioxidant activity and had a dose–response relationship with drug concentration. Compared with Bletilla striata polysaccharide obtained via conventional hot water extraction (BSP-W), the extraction yield of BSP obtained through this method (BSP-2) increased by 36.77%, the scavenging activity of DPPH radicals increased by 24.99%, the scavenging activity of ABTS radicals increased by 41.16%, and the ferric reducing antioxidant power increased by 49.19%. Therefore, DESs as new green reagents and BSP extracted with DESs not only had a high yield but also had strong antioxidant activity.

9 January 2023 in Foods
Verified
Journal Article
Open access
PDF file
HLHaiyan Li
Haiyan Li
YLYugang Liu
Yugang Liu
SGshiyin Guo
shiyin Guo
MENG SHIMENG SHI
MENG SHI
Si QinSi Qin
Si Qin
CZChaoxi Zeng
Chaoxi Zeng
Extracting ursolic acid (UA) from plant resources using organic solvents is incompatible with food applications. To address this, in this study, 15 edible hydrophobic deep eutectic solvents (HDESs) were prepared to extract UA from apple peel, the extraction conditions were optimized, and the optimization strategies were compared. It was found that the solubility of UA in the HDESs can be 9 times higher than the traditional solvent such as ethanol. The response surface optimization concluded that temperature had the greatest effect on the extraction and the optimized test conditions obtained as follows: temperature of 49 °C, time of 32 min, solid–liquid ratio of 1:16.5 g/mL, respectively. Comparing the response surface methodology (RSM) and artificial neural networks (ANN), it was concluded that ANN has more accurate prediction ability than RSM. Overall, the HDESs are more effective and environmentally friendly than conventional organic solvents to extract UA. The results of this study will facilitate the further exploration of HDES in various food and pharmaceutical applications.

1 February 2019 in Toxicology in Vitro
Verified
Journal Article
Closed access
LYLingchen Yang
Lingchen Yang
DTDi Tu
Di Tu
NWNaidong Wang
Naidong Wang
ZDZhibang Deng
Zhibang Deng
YZYang Zhan
Yang Zhan
AWAibing Wang
Aibing Wang

21 February 2025 in Agriculture
Verified
Journal Article
Open access
PDF file
LLLiu Lu
Liu Lu
HLHaiyan Lin
Haiyan Lin
XZXixin Zhou
Xixin Zhou
ZZZhixu Zhang
Zhixu Zhang
YZYi Zhang
Yi Zhang
WFWei Fan
Wei Fan
Cherries, as high-value horticultural products, have long faced preservation challenges due to their perishable nature and limited postharvest longevity. During storage and transportation, these stone fruits are particularly susceptible to quality deterioration and pathological decay, significantly impacting commercial viability and consumer acceptance. Modified atmosphere preservation (MAP) technology has emerged as the predominant preservation method for cherry storage, recognized for its operational safety, environmental controllability, and technical reliability. This review systematically examines the physiological degradation mechanisms of cherries during storage, identifies critical environmental factors influencing decay patterns, and synthesizes recent advancements in MAP applications. The analysis encompasses technological principles and efficacy evaluations of atmospheric modification, with particular emphasis on how regulated temperature, humidity, and gas composition parameters affect the bioactive compound retention, organoleptic properties, and overall eating quality—crucial factors for enhancing consumer satisfaction and market value. Furthermore, this paper critically addresses current technological limitations, including implementation costs, operational complexity, and environmental sustainability concerns. Finally, it proposes innovative optimization strategies and outlines future development trajectories to advance technological refinement and promote sustainable innovation in terms of cherry preservation methodologies.

25 April 2023 in Food Chemistry
Verified
Journal Article
Closed access
YLYugang Liu
Yugang Liu
HXHuiping Xia
Huiping Xia
SGshiyin Guo
shiyin Guo
PLPeiwang Li
Peiwang Li
SQSi Qin
Si Qin
CZChaoxi Zeng
Chaoxi Zeng