Yu-Cheng Yang

Prof. Yu-Cheng Yang

Department of Chemical Engineering, Huaqiao University, Xiamen, Fujian, China
orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

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

Representative Publications

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5 January 2020 in Polymers
Verified
Journal Article
Open access
PDF file
NZna zhang
na zhang
XLXiaohui Li
Xiaohui Li
JYJing Ye
Jing Ye
YYYu-Cheng Yang
Yu-Cheng Yang
YHyayan huang
yayan huang
MXMeitian Xiao
Meitian Xiao
The mechanical and barrier properties of plant-based enteric polymer films were enhanced by synergistic interactions between binary gum mixtures and adding plasticizers. The results indicated that the best ratio of gellan gum (GG) and xanthan gum (XG) was 7:3 by comparing tensile strength, tensile elongation, transmittance, and water vapor permeability of plant-based enteric polymer films and rheological properties of solutions. Polyethylene glycol 400 (PEG-400) was an effective plasticizer in improving plasticity and water vapor barrier property of the plant-based enteric polymer film. Rheology measurement and different characterization methods, including Fourier transform infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, X-ray diffraction, and scanning electron microscopy, were used to explain interactions between GG and XG as well as PEG-400 and components of the film. The new mixed system, composed of GG/XG mixture with ratio of 7:3 as a novel gelling agent and PEG-400 as a plasticizer, was applied to prepare plant-based enteric hard capsules, which have potential applications in medicines and functional food preparations.

1 February 2021 in Separation and Purification Technology
Verified
Journal Article
Closed access
YYYu-Cheng Yang
Yu-Cheng Yang
SZShang-Sheng Zeng
Shang-Sheng Zeng
YOYi Ouyang
Yi Ouyang
LSLe Sang
Le Sang
SYShi-Ying Yang
Shi-Ying Yang
NZNa Zhang
Na Zhang

5 March 2021 in Pharmaceutics
Verified
Journal Article
Open access
PDF file
CHChuqi He
Chuqi He
HWHaodong Wang
Haodong Wang
YYYu-Cheng Yang
Yu-Cheng Yang
YHyayan huang
yayan huang
ZXZhang Xueqin
Zhang Xueqin
MXMeitian Xiao
Meitian Xiao
The drying process is a significant step in the manufacturing process of enteric hard capsules, which affects the physical and chemical properties of the capsules. Thus, the drying characteristics of plant-based enteric hard capsules were investigated at a constant air velocity of 2 m/s in a bench scale hot-air dryer under a temperature range of 25 to 45 °C and relative humidity of 40 to 80%. Results indicate that the drying process of the capsules mainly occur in a falling-rate period, implying that moisture transfer in the capsules is governed by internal moisture diffusion rate. High temperature and low relative humidity reduce drying time but increase the drying rate of the capsules. Investigation results of the mechanical properties and storage stability of the capsules, however, reveal that a fast drying rate leads to plant-based enteric hard capsules of low quality. Scanning electron microscopy further demonstrates that more layered cracks appear in capsules produced under a faster drying rate. The Page model yielded the best fit for describing thin-layer drying of the capsules based on the coefficient of determination and reduced chi-square. Moreover, it was established that the effective moisture diffusivity of the capsules increases with an increase in drying temperature or reduction in relative humidity.

22 November 2018 in Journal of Chemical Technology & Biotechnology
Verified
Journal Article
Closed access
PDF file
YYYu-Cheng Yang
Yu-Cheng Yang
YOYi Ouyang
Yi Ouyang
NZNa Zhang
Na Zhang
QYQing‐Jie Yu
Qing‐Jie Yu
MAMoses Arowo
Moses Arowo

31 January 2025 in International Journal of Biological Macromolecules
Verified
Journal Article
Closed access
HCHaixin Chen
Haixin Chen
ZZZiyun Zhou
Ziyun Zhou
BZBingde Zheng
Bingde Zheng
HYHongjie Yang
Hongjie Yang
YCYi Chen
Yi Chen
YYYu-Cheng Yang
Yu-Cheng Yang

7 May 2019 in Processes
Verified
Journal Article
Open access
PDF file
FLFudi Lin
Fudi Lin
JYJing Ye
Jing Ye
YHyayan huang
yayan huang
YYYu-Cheng Yang
Yu-Cheng Yang
MXMeitian Xiao
Meitian Xiao
A simple method for obtaining pure and well-defined oligosaccharides was established by hydrolyzing agar with β-agarase from Vibrio natriegens. The conditions for enzymolysis were optimized as follows: a temperature of 45 °C, a pH of 8.5, a substrate concentration of 0.3%, an enzyme amount of 100 U/g and an enzymolysis time of 20 h. Neoagaro-oligosaccharides with different degrees of polymerization were obtained by hydrolyzing agar with β-agarase for different lengths of time. After removing pigments using activated carbon and salts by dialyzing, the enzyme hydrolysis solution was separated with Bio-Gel P2 column chromatography. Neoagaro-oligosaccharides with different degrees of polymerization were acquired. By comparing with authentic standard substances, along with further confirmation by FTIR, MS and NMR, structures of the purified neoagaro-oligosaccharides were identified as neoagarobiose (NA2), neoagaroteraose (NA4), neoagarohexaose (NA6), neoagarooctaose (NA8), neoagaro-decaose (NA10) and neoagarododecaose (NA12) with purities of more than 97.0%. The present study established a method for the preparation of various neoagaro-oligosaccharides that may be of great significance for further study of their bioactivities.