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Article ; Online: Fine physicochemical, structural, rheological and gelling properties of tomato pectin under infrared peeling technique

Liu, Ying / Qu, Wenjuan / Feng, Yuhang / Ma, Haile

Innovative Food Science and Emerging Technologies. 2023 May, v. 85 p.103343-

2023

Abstract: To protect the pulp quality, the effect of infrared peeling on the physicochemical, structural, rheological, and gelling properties of tomato pectin was investigated using newly developed catalytic infrared peeling equipment and compared with manual, hot- ...

Abstract	To protect the pulp quality, the effect of infrared peeling on the physicochemical, structural, rheological, and gelling properties of tomato pectin was investigated using newly developed catalytic infrared peeling equipment and compared with manual, hot-water and lye peeling. Compared to manually peeled pectin, the results showed that hot-water peeling reduced the pectin yield by 13.19% but significantly increased the pectin's Z-average radius of gyration (Rg) and hydrodynamic radius (RH). And the pectin gel had excessive hardness. Lye peeling reduced the pectin yield by 30.43%, the degree of esterification (DE) by 25.97%, RH by 7.8 nm and Rg by 2.9 nm. And the pectin gel had the worst water-holding capacity and texture. The yield and DE of pectin (IPP) after infrared peeling only decreased by 3.88% and 0.9%. IPP exhibited moderate physicochemical, structural, rheological, and gelling properties, which was the closest to manually peeled pectin. IPP gel showed steady viscoelasticity and high water-holding capacity (96.71%). Conclusively, the infrared peeling technique can provide better pulp quality and is sustainable.
Keywords	equipment ; esterification ; food science ; gels ; hardness ; hydrodynamics ; pectins ; pulp ; texture ; tomatoes ; viscoelasticity ; water holding capacity ; Tomato pectin ; Peeling ; Structure ; Function ; Rheology ; Gelling ; MP ; FIP ; HWP ; LP ; MPP ; IPP ; HPP ; LPP ; DE ; Mw ; Rg ; HPLC ; [ƞ] ; RH ; CD ; XRD ; TPA ; TGA ; TG ; DTG ; SEM ; AFM ; WHC
Language	English
Dates of publication	2023-05
Publishing place	Elsevier Ltd
Document type	Article ; Online
ZDB-ID	2025029-0
ISSN	1466-8564
ISSN	1466-8564
DOI	10.1016/j.ifset.2023.103343
Database	NAL-Catalogue (AGRICOLA)

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Article: Forensic analysis and sequence variation of 133 STRs in the Hakka population.

Feng, Yuhang / Zhao, Yutao / Lu, Xiaoyu / Li, Haiyan / Zhao, Kai / Shi, Meisen / Wen, Shaoqing

Frontiers in genetics

2024 Volume 15, Page(s) 1347868

Abstract: Introduction: ...

Abstract	Introduction:
Language	English
Publishing date	2024-01-22
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2606823-0
ISSN	1664-8021
ISSN	1664-8021
DOI	10.3389/fgene.2024.1347868
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Article ; Online: Synthesis and Crystallization Mechanism for SAPO-34 Zeolite Derived from Magadiite.

Liu, Bo / Gao, Yu / Xu, Hanlu / Feng, Yuhang / Zhou, Zihan / Gao, Yuan / Jiang, Rongli

ChemPlusChem

2024 , Page(s) e202400104

Abstract: In this work, we explored the hydrothermal synthesize and crystallization process of SAPO-34 zeolites from two-dimensional layered silicate magadiite by using tetraethylammonium hydroxide (TEAOH) as a templating agent. Comprehensive characterization was ... ...

Abstract	In this work, we explored the hydrothermal synthesize and crystallization process of SAPO-34 zeolites from two-dimensional layered silicate magadiite by using tetraethylammonium hydroxide (TEAOH) as a templating agent. Comprehensive characterization was conducted by XRD, SEM, FTIR, Raman, and BET. Time-resolved PXRD analysis revealed that SAPO-34 zeolite exhibited a steep growth curve when the crystallization time was 30 h, and the crystallinity reached 98.65 % at 48 h. Specifically, the disruption of the magadiite layer exposed charged silanol groups on the surface, fostering an affinity for AlO
Language	English
Publishing date	2024-03-09
Publishing country	Germany
Document type	Journal Article
ISSN	2192-6506
ISSN (online)	2192-6506
DOI	10.1002/cplu.202400104
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Article ; Online: Preparation, structural and functional characterization of corn peptide-chelated calcium microcapsules using synchronous dual frequency ultrasound.

Qu, Wenjuan / Feng, Yuhang / Xiong, Ting / Qayum, Abdul / Ma, Haile

Ultrasonics sonochemistry

2023 Volume 102, Page(s) 106732

Abstract: The utilization of peptide-chelated calcium is low due to the influence of factors such as solubility, heat and digestive environmental conditions; therefore, it is crucial to protect, prolong and stabilize this nutrient in order to enhance its efficacy. ...

Abstract	The utilization of peptide-chelated calcium is low due to the influence of factors such as solubility, heat and digestive environmental conditions; therefore, it is crucial to protect, prolong and stabilize this nutrient in order to enhance its efficacy. This study was conducted to prepare corn peptide-chelated calcium microcapsules using β-cyclodextrin (β-CD) as the wall material through an improved ultrasonic-assisted method. The structure, solubility, thermal stability, and in vitro gastrointestinal digestion of these microcapsules were thoroughly investigated and analyzed. The microcapsules were prepared using the following recommended conditions: a chelate concentration of 5 mg/mL, a mass ratio of chelate to β-CD of 1:8 g/g, and a synchronous dual-frequency ultrasound (20/28 kHz) at a power of 75 W, a duty ratio of 20/5 s/s, and a time of 20 min. These specific parameters were carefully selected to ensure the optimal fabrication of the microcapsules. The results showed that the utilization of dual-frequency ultrasound resulted in a significant increase in both the encapsulation rate and yield, which were enhanced by 15.84 % and 15.68 %, respectively, reaching impressive values of 79.17 % and 90.60 %. Moreover, the results of the structure index analysis provided further confirmation that ultrasonic treatment had a significant impact on the structure of the microcapsules, leading to a noticeable reduction in particle size and transformation into nanoparticles. Furthermore, the microcapsules demonstrated excellent solubility within a wide pH range of 2 to 10, with solubility ranging from 93.54 % to 88.68 %. Additionally, these microcapsules exhibited remarkable thermal stability, retaining a minimum of 84.8 % of their stability when exposed to temperatures ranging from 40 to 80 °C. Moreover, during gastric and intestinal digestion, these microcapsules exhibited a high slow-release rate of 44.66 % and 51.6 %, indicating their ability to gradually release calcium contents. The inclusion of dual-frequency ultrasound in the preparation of high calcium microcapsules yielded promising outcomes. Overall, our work presents a novel method for synthesizing corn peptide-chelated calcium microcapsules with desirable properties such as good solubility, excellent thermal stability, and a significant slow-release effect. These microcapsules have the potential to serve as fortified high calcium supplements.
MeSH term(s)	Calcium ; Zea mays ; Capsules/chemistry ; Solubility ; Peptides
Chemical Substances	Calcium (SY7Q814VUP) ; Capsules ; Peptides
Language	English
Publishing date	2023-12-19
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	1208333-1
ISSN	1873-2828 ; 1350-4177
ISSN (online)	1873-2828
ISSN	1350-4177
DOI	10.1016/j.ultsonch.2023.106732
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Article: Research on tomato peeling using flame-catalytic infrared radiation

Qu, Wenjuan / Liu, Ying / Feng, Yuhang / Ma, Haile

Lebensmittel-Wissenschaft + Technologie. 2022 June 15, v. 163

2022

Abstract: To improve tomato peeling rate and ensure pulp quality, a flame-catalytic infrared peeling (FIP) method was developed in this study. The peeling parameters, peelability, mechanism (polysaccharides, mechanical property, and microstructure) and pulp ... ...

Abstract	To improve tomato peeling rate and ensure pulp quality, a flame-catalytic infrared peeling (FIP) method was developed in this study. The peeling parameters, peelability, mechanism (polysaccharides, mechanical property, and microstructure) and pulp quality (firmness, lycopene, and polysaccharides) were investigated. Results showed that FIP under 10 s flame heating and 4 min infrared heating at 350 °C yielded the highest peelability (98%), firmness (6.04 g/mm²), and lycopene (53.73 mg/kg). Compared with hot water peeling (HWP) and lye peeling (LP), FIP had the least degradation of cellulose (92.32%), hemicellulose (61.75%), and pectin (76.47%) in peel and the least damage to their structures and mechanical properties with the reductions of 19.50% and 16.69% (tensile and puncture forces). The only cell collapse of the peel was found in FIP by scanning electron microscopy (SEM), showing a different peeling mechanism from the HWP and LP. In addition, FIP protected pulp quality to the greatest extent, which had the highest retention of cellulose (91.67%), hemicellulose (94.08%), pectin (98.66%), and firmness (6.04 g/mm²), significantly increased the lycopene content and did not change their structures. It proves that FIP has a promising potential to replace the existing peeling technology and can be widely applied in the fruit peeling.
Keywords	cellulose ; electron microscopy ; firmness ; fruits ; heat ; hemicellulose ; infrared radiation ; lycopene ; mechanical properties ; microstructure ; pectins ; pulp ; tomatoes
Language	English
Dates of publication	2022-0615
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	241369-3
ISSN	0460-1173 ; 0023-6438
ISSN	0460-1173 ; 0023-6438
DOI	10.1016/j.lwt.2022.113542
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Analysis of maternal genetic structure of mitochondrial DNA control region from Tai-Kadai-speaking Buyei population in southwestern China.

Feng, Yuhang / Chen, Li / Wang, Xiaoxue / Zhang, Hongling / Wang, Qiyan / Liu, Yubo / Jin, Xiaoye / Yang, Meiqing / Huang, Jiang / Ren, Zheng

BMC genomics

2024 Volume 25, Issue 1, Page(s) 50

Abstract: Background: Even though the Buyei are a recognised ethnic group in southwestern China, there hasn't been much work done on forensic population genetics, notably using mitochondrial DNA. The sequences and haplogroups of mitochondrial DNA control regions ... ...

Abstract	Background: Even though the Buyei are a recognised ethnic group in southwestern China, there hasn't been much work done on forensic population genetics, notably using mitochondrial DNA. The sequences and haplogroups of mitochondrial DNA control regions of the Buyei peoples were studied to provide support for the establishment of a reference database for forensic DNA analysis in East Asia. Methods and results: The mitochondrial DNA control region sequences of 200 Buyei individuals in Guizhou were investigated. The haplotype frequencies and haplogroup distribution of the Buyei nationality in Guizhou were calculated. At the same time, the paired Fst values of the study population and other populations around the world were computed, to explore their genetic polymorphism and population relationship. A total of 179 haplotypes were detected in the Buyei population, with frequencies of 0.005-0.015. All haplotypes were assigned to 89 different haplogroups. The haplotype diversity and random matching probability were 0.999283 and 0.0063, respectively. The paired Fst genetic distances and correlation p-values among the 54 populations revealed that the Guizhou Buyei was most closely related to the Henan Han and the Guizhou Miao, and closer to the Hazara population in Pakistan and the Chiang Mai population. Conclusions: The study of mitochondrial DNA based on the maternal genetic structure of the Buyei nationality in Guizhou will benefit the establishment of an East Asian forensic DNA reference database and provide a reference for anthropological research in the future.
MeSH term(s)	Humans ; DNA, Mitochondrial/genetics ; Polymorphism, Genetic ; Genetics, Population ; Haplotypes ; China ; Microsatellite Repeats ; Phylogeny
Chemical Substances	DNA, Mitochondrial
Language	English
Publishing date	2024-01-11
Publishing country	England
Document type	Journal Article
ZDB-ID	2041499-7
ISSN	1471-2164 ; 1471-2164
ISSN (online)	1471-2164
ISSN	1471-2164
DOI	10.1186/s12864-023-09941-x
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Article: Low-Cost Laser Micromachining Super Hydrophilic-Super Hydrophobic Microgrooves for Robotic Capillary Micromanipulation of Microfibers.

Chang, Bo / Feng, Yuhang / Jin, Jialong / Zhou, Quan

Micromachines

2021 Volume 12, Issue 8

Abstract: Capillary self-alignment technique can achieve highly accurate and fast alignment of micro components. Capillary self-alignment technique relies on the confinement of liquid droplets at receptor sites where hydrophobic-hydrophilic patterns are widely ... ...

Abstract	Capillary self-alignment technique can achieve highly accurate and fast alignment of micro components. Capillary self-alignment technique relies on the confinement of liquid droplets at receptor sites where hydrophobic-hydrophilic patterns are widely used. This paper reports a low-cost microsecond pulse laser micromachining method for fabrication of super hydrophilic-super hydrophobic grooves as receptor sites for capillary self-alignment of microfibers. We investigated the influence of major manufacturing parameters on groove sizes and wetting properties. The effects of the width (20 µm-100 µm) and depth (8 µm-36 µm) of the groove on the volume of water droplet contained inside the groove were also investigated. We show that by altering scanning speed, using a de-focused laser beam, we can modify the wetting properties of the microgrooves from 10° to 120° in terms of the contact angle. We demonstrated that different types of microfibers including natural and artificial microfibers can self-align to the size matching super hydrophilic-super hydrophobic microgrooves. The results show that super hydrophilic-super hydrophobic microgrooves have great potential in microfiber micromanipulation applications such as natural microfiber categorization, fiber-based microsensor construction, and fiber-enforced material development.
Language	English
Publishing date	2021-07-21
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2620864-7
ISSN	2072-666X
ISSN	2072-666X
DOI	10.3390/mi12080854
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Article ; Online: Assessment of cell wall degrading enzymes by molecular docking and dynamics simulations: Effects of novel infrared treatment.

Liu, Ying / Qu, Wenjuan / Liu, Yuxuan / Feng, Yuhang / Ma, Haile / Tuly, Jamila A

International journal of biological macromolecules

2023 Volume 258, Issue Pt 1, Page(s) 128825

Abstract: Cell wall-degrading enzymes' activities under infrared treatment are vital for peeling; it is critical to elucidate the mechanisms of the novel infrared peeling in relation to its impact on cell wall-degrading enzymes. In this study, the activities, and ... ...

Abstract	Cell wall-degrading enzymes' activities under infrared treatment are vital for peeling; it is critical to elucidate the mechanisms of the novel infrared peeling in relation to its impact on cell wall-degrading enzymes. In this study, the activities, and gene expressions of eight degrading enzymes closely related to pectin, cellulose and hemicellulose were determined. The most influential enzyme was selected from them, and then the mechanism of its changes was revealed by molecular dynamics simulation and molecular docking. The results demonstrated that infrared had the most significant effect on β-glucosidase among the tested enzymes (increased activity and up-regulated gene expression of 195.65 % and 7.08, respectively). It is suggested infrared crucially promotes cell wall degradation by affecting β-glucosidase. After infrared treatment, β-glucosidase's structure moderately transformed to a more open one and became flexible, increasing the affinity between β-glucosidase and substrate (increasing 75 % H-bonds and shortening 15.89 % average length), thereby improving β-glucosidase's activity. It contributed to cell wall degradation. The conclusion is that the effect of infrared on the activity, gene expression and molecular structure of β-glucosidase causes damage to the peel, thus broadening the applicability of the new infrared dry-peeling technique, which has the potential to replace traditional wet-peeling methods.
MeSH term(s)	Molecular Docking Simulation ; Cellulose ; Molecular Structure ; Cell Wall ; Cellulases
Chemical Substances	Cellulose (9004-34-6) ; Cellulases (EC 3.2.1.-)
Language	English
Publishing date	2023-12-17
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	282732-3
ISSN	1879-0003 ; 0141-8130
ISSN (online)	1879-0003
ISSN	0141-8130
DOI	10.1016/j.ijbiomac.2023.128825
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Article ; Online: Calcium-chelating improved zein peptide stability, cellular uptake, and bioactivity by influencing the structural characterization

Qu, Wenjuan / Li, Yuhan / Xiong, Ting / Feng, Yuhang / Ma, Haile / Dzidzorgbe Kwaku Akpabli-Tsigbe, Nelson

Food Research International. 2022 Oct. 09, p.112033-

2022 , Page(s) 112033–

Abstract: To improve the calcium intake, stability, and functional properties, calcium-chelating zein peptide (Ca-ZP) was developed from zein. The preparation conditions, structural characterization, stability, cellular uptake, antioxidant and antihypertensive ... ...

Abstract	To improve the calcium intake, stability, and functional properties, calcium-chelating zein peptide (Ca-ZP) was developed from zein. The preparation conditions, structural characterization, stability, cellular uptake, antioxidant and antihypertensive activities of the Ca-ZP were investigated compared to the zein peptide (ZP). The highest calcium content and yield of Ca-ZP were 85.71% and 42.91%, respectively. After binding ZP carboxyl and amino groups with Ca²⁺, Ca-ZP was formed, confirmedby structural analyses. Moreover, Ca-ZP exhibited good stability at wide pHs, temperatures, and under-simulated gastrointestinal digestion in vitro, as well as antioxidant and ACE inhibitory capacity with the IC₅₀ values of DPPH scavenging, hydroxyl radical scavenging, and ACE inhibitory activities of 0.48, 0.96, and 0.49 mg/mL respectively. Ca-ZP gastrointestinal digestive fluid showed higher calcium transport and absorption capacity than CaCl₂ digestivefluid. Overall, Ca-ZP possessed high calcium-binding capacity, calcium absorption bioavailability, stability, and bioactivity. This work provides a promising approach for preparing calcium-chelating zein peptides, which are applicable as calcium supplements, antioxidants, and antihypertensive products.
Keywords	absorption ; bioactive properties ; bioavailability ; calcium ; digestion ; food research ; gastrointestinal system ; hydroxyl radicals ; pH ; peptides ; zein ; Zein peptide ; Peptide-calcium complex ; Activity ; Structure ; Stability ; Caco-2 cell monolayers ; ZP ; Ca-ZP ; ACE ; FAPGG ; HEPES ; EDTA ; DMEM ; FBS ; UV-Vis ; FTIR ; XRD ; XPS ; SEM ; AFM ; SGF ; SIF ; CCK-8 ; HBSS ; TEER ; AP ; BL
Language	English
Dates of publication	2022-1009
Publishing place	Elsevier Ltd
Document type	Article ; Online
Note	Pre-press version
ZDB-ID	1111695-x
ISSN	1873-7145 ; 0963-9969
ISSN (online)	1873-7145
ISSN	0963-9969
DOI	10.1016/j.foodres.2022.112033
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Article ; Online: Genetic analysis of the mitochondrial DNA control region in Tai-Kadai-speaking Dong population in southwest China.

Ren, Zheng / Feng, Yuhang / Zhang, Hongling / Wang, Qiyan / Yang, Meiqing / Liu, Yubo / Le, Cuiyun / Wang, Jie / Huang, Jiang

Annals of human biology

2022 Volume 49, Issue 7-8, Page(s) 354–360

Abstract: Background: Dong people in Southwest China are officially recognised as an ethnic group, but there has been a lack of population genetic research on this group, especially based on mitochondrial DNA data.: Aim: To study the sequences and haplogroups ... ...

Abstract	Background: Dong people in Southwest China are officially recognised as an ethnic group, but there has been a lack of population genetic research on this group, especially based on mitochondrial DNA data. Aim: To study the sequences and haplogroups of the mitochondrial DNA control region in a typical Dong population, and to provide help for the construction of a forensic mitochondrial DNA analysis reference database in East Asia. Subjects and methods: The sequences of the mitochondrial DNA control region were analysed in 200 individuals of Dong in Guizhou. The haplotype frequencies, haplogroup distribution and paired Fst values of Guizhou Dong and 51 other populations in the world were calculated and explained to explore the genetic polymorphism and population relationships. Results: A total of 180 haplotypes were detected, with frequencies of 0.005-0.02. All haplotypes were assigned to 97 different haplogroups. The haplotype diversity and random matching probability were 0.998643 and 0.00635, respectively. The paired Fst values and correlation Conclusions: Our study was based on the matrilineal genetic structure of Guizhou Dong to study mitochondrial DNA, which was helpful to promote the establishment of the forensic DNA reference database in East Asia and provide reference for anthropological research.
MeSH term(s)	Humans ; DNA, Mitochondrial/genetics ; Polymorphism, Genetic ; Ethnicity/genetics ; Haplotypes ; China
Chemical Substances	DNA, Mitochondrial
Language	English
Publishing date	2022-11-30
Publishing country	England
Document type	Journal Article
ZDB-ID	186656-4
ISSN	1464-5033 ; 0301-4460
ISSN (online)	1464-5033
ISSN	0301-4460
DOI	10.1080/03014460.2022.2131334
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