1
|
Li M, Wang J, Zhang J, Lv Y, Guo S, Van der Meeren P. In vitro protein digestibility of different soy-based products: effects of microstructure, physico-chemical properties and protein aggregation. Food Funct 2023; 14:10964-10976. [PMID: 38013460 DOI: 10.1039/d3fo02410e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
This study investigates the effects of protein structure and food microstructure on the in vitro protein gastrointestinal digestibility of different soy-based products, such as soy drink, reconstituted soy drink powder, firm tofu, and yuba. The results of the chemical cross-linking analysis showed that hydrogen bonds and hydrophobic interactions were the main forces driving protein aggregation in (reconstituted) soy drink powder and firm tofu, whereas disulphide bonds were significantly more important for soy drink and yuba. The β-sheet content of soy drink (36.5%) was lower than that of yuba (43.3%), but significantly higher than those of soy drink powder (23.2%) and firm tofu (29.8%). The in vitro protein digestibility decreased in the order of firm tofu > reconstituted soy drink powder > yuba > soy drink. Principal component analysis showed that protein gastrointestinal digestibility was positively correlated with the surface SH content and soluble protein content released by SDS + urea (SB-SA) but negatively correlated with the disulphide bonds and β-sheet content for the four soybean products.
Collapse
Affiliation(s)
- Mengdi Li
- Beijing Laboratory for Food Quality and Safety; Key Laboratory of Agricultural Product Detection and Control for Spoilage Organisms and Pesticides; Food Science and Engineering College, Beijing University of Agriculture, Beijing, 102206, China.
- Particle and Interfacial Technology Group (PaInT), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Jing Wang
- Beijing Laboratory for Food Quality and Safety; Key Laboratory of Agricultural Product Detection and Control for Spoilage Organisms and Pesticides; Food Science and Engineering College, Beijing University of Agriculture, Beijing, 102206, China.
| | - Jiayu Zhang
- Beijing Laboratory for Food Quality and Safety; Key Laboratory of Agricultural Product Detection and Control for Spoilage Organisms and Pesticides; Food Science and Engineering College, Beijing University of Agriculture, Beijing, 102206, China.
| | - Ying Lv
- Beijing Laboratory for Food Quality and Safety; Key Laboratory of Agricultural Product Detection and Control for Spoilage Organisms and Pesticides; Food Science and Engineering College, Beijing University of Agriculture, Beijing, 102206, China.
| | - Shuntang Guo
- Beijing Key Laboratory of Plant Protein and Cereal Processing, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Paul Van der Meeren
- Particle and Interfacial Technology Group (PaInT), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| |
Collapse
|
2
|
Liu L, Li X, Wang X, Wang Y, Shao Z, Liu X, Shan D, Liu Z, Dai Y. Metolachlor adsorption using walnut shell biochar modified by soil minerals. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 308:119610. [PMID: 35700880 DOI: 10.1016/j.envpol.2022.119610] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 05/31/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
The removal of pesticide residues in soil is a research hotspot. The metolachlor (MET) adsorption by walnut shell biochar (BC) modified with montmorillonite (MBC), illite (IBC), and kaolinite (KBC), as well as the original BC (OBC) was investigated. The characteristics of samples were studied by scanning electron microscopy and mapping analysis, Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetry, and chemical stability analysis. The effects of the dosage, ionic strength, and pH, and determined the adsorption kinetics and isotherms for MET with the BCs were analyzed. In addition, response surface methodology regression model analysis was conducted and the adsorption mechanisms were investigated. The results showed that the thermal stability and chemical stability of MBC, IBC, and KBC were higher than those of OBC, and MBC had the greatest stability. The MET adsorption rates of OBC, MBC, IBC, and KBC were 62.15%, 92.47%, 87.97%, and 83.31%, respectively. The kinetic fitting results and adsorption mechanisms showed that the modification of BC with minerals enhanced the physical adsorption of MET. The maximum MET adsorption capacities by OBC, MBC, IBC, and KBC were 39.68 mg g-1, 68.49 mg g-1, 65.79 mg g-1, and 65.36 mg g-1, respectively. Hydrogen bonds, π-π bonds, coordination bonds, and hydrophobic interactions were the key adsorption mechanisms. Therefore, the mineral-modified BCs were characterized by high adsorption rates and stability. This approach can make BC more efficient, with higher performance as a low cost soil amendment.
Collapse
Affiliation(s)
- Lu Liu
- Key Laboratory of Agricultural Renewable Resource Utilization Technology of Heilongjiang Province, Northeast Agricultural University, No.600 Changjiang Road, Xiangfang District, Harbin, 150030, China; School of Resources and Environment, Northeast Agricultural University, No.600 Changjiang Road, Xiangfang District, Harbin, 150030, China; School of Environment, Harbin Institute of Technology, No.73, Huanghe Road, Nangang District, Harbin, 150090, China
| | - Xiaohan Li
- School of Resources and Environment, Northeast Agricultural University, No.600 Changjiang Road, Xiangfang District, Harbin, 150030, China
| | - Xiaorou Wang
- Environment Research Institute, Shandong University, No.72 Binhai Road, Jimo District, Qingdao, 266237, China
| | - Yuxin Wang
- School of Resources and Environment, Northeast Agricultural University, No.600 Changjiang Road, Xiangfang District, Harbin, 150030, China
| | - Ziyi Shao
- School of Resources and Environment, Northeast Agricultural University, No.600 Changjiang Road, Xiangfang District, Harbin, 150030, China
| | - Xiao Liu
- School of Resources and Environment, Northeast Agricultural University, No.600 Changjiang Road, Xiangfang District, Harbin, 150030, China
| | - Dexin Shan
- College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, No.319 Honghe Road, Yongchuan District, Chongqing, 402168, China
| | - Zhihua Liu
- School of Resources and Environment, Northeast Agricultural University, No.600 Changjiang Road, Xiangfang District, Harbin, 150030, China
| | - Yingjie Dai
- School of Resources and Environment, Northeast Agricultural University, No.600 Changjiang Road, Xiangfang District, Harbin, 150030, China.
| |
Collapse
|
3
|
Chen X, Dai Y, Huang Z, Zhao L, Du J, Li W, Yu D. Effect of ultrasound on the glycosylation reaction of pea protein isolate-arabinose: Structure and emulsifying properties. ULTRASONICS SONOCHEMISTRY 2022; 89:106157. [PMID: 36088895 PMCID: PMC9474918 DOI: 10.1016/j.ultsonch.2022.106157] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/29/2022] [Accepted: 09/01/2022] [Indexed: 05/26/2023]
Abstract
This study investigated the effects of different ultrasonic power and ultrasonic time on the structure and emulsifying properties of pea protein isolate (PPI)-arabinose conjugates. An examination of the absorbance and color development of PPI-d-arabinose (Ara) conjugates found that compared with traditional heating, the degree of glycosylation of protein reached the maximum when the ultrasonic treatment power was 150 and the treatment time was 30 min. Structural analysis revealed that the content of disordered structures (β-turn and random coil) of the protein conjugates increased, the maximum emission wavelength of the fluorescence spectrum was red-shifted, and the UV second-order derivative values decreased. The protein structure unfolded, exposing more hydrophobic groups on the molecular surface. Ultrasonic treatment improved the emulsification of protein conjugates. The emulsifying activity index (EAI) increased to 19.7 and 19.3 m2/g, and the emulsifying stability index (ESI) also increased. The contact angle and zeta potential also demonstrate that ultrasonic power has a positive effect on emulsion stability. Based on examining the thermal stability of the emulsion, the ultrasonic treatment increased the thermal denaturation resistance of the protein. This result confirms that mild sonication can increase the degree of glycosylation reaction and improve the emulsification properties of protein-Ara conjugates, providing a theoretical basis for developing foods with excellent emulsification properties.
Collapse
Affiliation(s)
- Xing Chen
- Northeast Agricultural University, Harbin, 150030, China
| | - Yajie Dai
- Northeast Agricultural University, Harbin, 150030, China
| | - Zhe Huang
- Northeast Agricultural University, Harbin, 150030, China
| | - Linwei Zhao
- Northeast Agricultural University, Harbin, 150030, China
| | - Jing Du
- Northeast Agricultural University, Harbin, 150030, China
| | - Wei Li
- Northeast Agricultural University, Harbin, 150030, China
| | - Dianyu Yu
- Northeast Agricultural University, Harbin, 150030, China
| |
Collapse
|