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Gao X, Zheng Y, Zhong Y, Zhou R, Li B, Ma M. Preparation and Characterization of Novel Chitosan Coatings to Reduce Changes in Quality Attributes and Physiochemical and Water Characteristics of Mongolian Cheese during Cold Storage. Foods 2023; 12:2731. [PMID: 37509823 PMCID: PMC10379865 DOI: 10.3390/foods12142731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 06/23/2023] [Accepted: 06/30/2023] [Indexed: 07/30/2023] Open
Abstract
The objective of this study was to evaluate the effect of O-carboxymethyl chitosan coating on microbiological, physiochemical, and water characteristics of Mongolian cheese during refrigerated storage. O-carboxymethyl chitosan coatings, particularly at 1.5%, improved cheese preservation by significantly inhibiting microbial growth, reducing changes in protein and non-protein nitrogen, and preserving pH and titratable acidity. For texture profile analysis (TPA), the hardness, gumminess, and chewiness in O-CMC treatments were significantly more stable than those in the control during storage. In addition, the relaxation component and image of nuclear magnetic resonance (NMR) were used to analyze the internal water mobility of the cheese during storage. Compared with other treatments, the 1.5% O-carboxymethyl chitosan coating had the best overall preserving effect during storage. O-carboxymethyl chitosan coating could be used in cheese preservation applications and could extend the shelf life of Mongolian cheese. The cheese coated with 1.5% O-carboxymethyl chitosan coating ranked the highest in acceptability at the end of the storage period.
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Affiliation(s)
- Xin Gao
- College of Food and Tourism, Shanghai Urban Construction Vocational College, Shanghai 201415, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Yuanrong Zheng
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, China
| | - Yu Zhong
- Department of Food Science and Technology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ran Zhou
- College of Food and Tourism, Shanghai Urban Construction Vocational College, Shanghai 201415, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
- Quality Supervision, Inspection and Testing Center for Cold Storage and Refrigeration Equipment, Ministry of Agriculture, Shanghai 201306, China
| | - Bo Li
- College of Food and Tourism, Shanghai Urban Construction Vocational College, Shanghai 201415, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Ming Ma
- College of Food and Tourism, Shanghai Urban Construction Vocational College, Shanghai 201415, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
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The Effect of Short-Term Temperature Pretreatments on Sugars, Organic Acids, and Amino Acids Metabolism in Valencia Orange Fruit. J FOOD QUALITY 2022. [DOI: 10.1155/2022/8188000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Temperature pretreatment is one of the most important factors which significantly affects the postharvest quality of citrus fruit. In this study, late-ripening Valencia orange (citrus sinensis) fruits were used to investigate the effect of short-term treatment at low (6°C), room (20°C), and high (40°C) temperatures on fruit quality. Our results revealed that both low and room-temperature treatments maintained the content of sugars and organic acids, whereas high-temperature treatments elevated the accumulation of sugars but decreased the content of citric acid. In fruit peel (flavedo and albedo), the accumulation of sugars and organic acids responding to temperatures was diverse and mostly different from that in the pulp. Meanwhile, GABA and several amino acids were upregulated under short-term high-temperature treatment but downregulated in response to low-temperature treatment in both peel and pulp. Furthermore, PCA and correlation analysis revealed that the short-term temperature treatments changed the metabolic flow, and GABA was positively correlated with sugars and organic acids. Our study analyzed the metabolic changes of fruit peel and pulp in response to short-term temperature treatments and revealed that GABA may act as a signaling molecular involved in temperature-controlled quality changes.
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Shu C, Cao J, Jiang W. Postharvest vibration-induced apple quality deterioration is associated with the energy dissipation system. Food Chem 2022; 386:132767. [PMID: 35339081 DOI: 10.1016/j.foodchem.2022.132767] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/16/2022] [Accepted: 03/20/2022] [Indexed: 11/04/2022]
Abstract
Transit vibration is a potential risk that may cause fruit deterioration. Regulating energy metabolism is recognized for attenuating fruit abiotic/abiotic stresses. To explore the role of energy metabolism in the response of fruit to vibration stress, this research investigated the effects of exogenous treatment with adenosine triphosphate (ATP) and 2,4-dinitrophenol (DNP) on fruit after simulated vibration stress. The results demonstrated that DNP treatment induced significant energy depletion, which exacerbated the adverse physiological responses induced by vibration stress. In contrast, ATP regulated higher fruit energy levels and significantly alleviated fruit quality deterioration. This is achieved by supplying direct energy substances, maintaining higher energy charges, inhibiting ethylene biosynthesis, elevating the antioxidant system, and suppressing cell oxidative damage. The results demonstrated the positive role of fruit energy metabolism response to vibration stress. Ensuring sufficient energy level may be a promising strategy for controlling vibration-induced adverse physiological responses and a potential method to maintain fruit quality.
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Affiliation(s)
- Chang Shu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, PR China
| | - Jiankang Cao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, PR China
| | - Weibo Jiang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, PR China.
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Li C, Huang Q, Zhang H, Wang Q, Xue R, Guo G, Hu J, Li T, Wang J, Hu S. Characterization of Biochars Produced by Co-Pyrolysis of Hami Melon (Cantaloupes) Straw Mixed with Polypropylene and Their Adsorption Properties of Cadmium. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:11413. [PMID: 34769930 PMCID: PMC8583670 DOI: 10.3390/ijerph182111413] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 12/02/2022]
Abstract
Reuse of waste from Hami melon (cantaloupes) straws (HS) mingled with polypropylene (PP) ropes is necessary and beneficial to mitigate environmental pollution. The objective of this study was to investigate the characteristics and mechanisms of Cd2+ adsorption on biochars produced by co-pyrolysis of HS-PP with various mixing ratios. N2-sorption, scanning electron microscopy (SEM), energy dispersive X-ray spectrometer (EDS), elemental analysis, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermal gravity, and differential thermal gravity (TG/DTG) were applied to evaluate the physicochemical properties of materials. Batch adsorption experiments were carried out for investigating the effects of initial pH, Cd2+ concentration, and adsorption time. It was found that the Langmuir and pseudo-second-order models fitted best for the experimental data, indicating the dominant adsorption of co-pyrolysis biochars is via monolayer adsorption. Biochar derived at 4/1 mixing ratio of HS/PP by weight percentage had the highest adsorption capacity of 108.91 mg·g-1. Based on adsorption isotherm and kinetic analysis in combined with EDS, FTIR, and XRD analysis, it was concluded that the main adsorption mechanism of co-pyrolysis biochar involved the surface adsorption, cation exchange, complexation of Cd2+ with surface functional groups, and chemical precipitation. This study also demonstrates that agricultural wastes to biochar is a sustainable way to circular economy.
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Affiliation(s)
- Changheng Li
- College of Ecology and Environment, Hainan University, Haikou 570228, China; (C.L.); (Q.W.); (R.X.); (G.G.); (J.H.); (T.L.); (J.W.); (S.H.)
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China
- Center for Eco-Environmental Restoration Engineering of Hainan Province, Haikou 570228, China
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
- Key Laboratory for Environmental Toxicology of Haikou, Hainan University, Haikou 570228, China
| | - Qing Huang
- College of Ecology and Environment, Hainan University, Haikou 570228, China; (C.L.); (Q.W.); (R.X.); (G.G.); (J.H.); (T.L.); (J.W.); (S.H.)
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China
- Center for Eco-Environmental Restoration Engineering of Hainan Province, Haikou 570228, China
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
- Key Laboratory for Environmental Toxicology of Haikou, Hainan University, Haikou 570228, China
| | - Haixiang Zhang
- College of Tropical Crops, Hainan University, Haikou 570228, China;
| | - Qingqing Wang
- College of Ecology and Environment, Hainan University, Haikou 570228, China; (C.L.); (Q.W.); (R.X.); (G.G.); (J.H.); (T.L.); (J.W.); (S.H.)
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China
- Center for Eco-Environmental Restoration Engineering of Hainan Province, Haikou 570228, China
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
- Key Laboratory for Environmental Toxicology of Haikou, Hainan University, Haikou 570228, China
| | - Rixin Xue
- College of Ecology and Environment, Hainan University, Haikou 570228, China; (C.L.); (Q.W.); (R.X.); (G.G.); (J.H.); (T.L.); (J.W.); (S.H.)
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China
- Center for Eco-Environmental Restoration Engineering of Hainan Province, Haikou 570228, China
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
- Key Laboratory for Environmental Toxicology of Haikou, Hainan University, Haikou 570228, China
| | - Genmao Guo
- College of Ecology and Environment, Hainan University, Haikou 570228, China; (C.L.); (Q.W.); (R.X.); (G.G.); (J.H.); (T.L.); (J.W.); (S.H.)
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China
- Center for Eco-Environmental Restoration Engineering of Hainan Province, Haikou 570228, China
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
- Key Laboratory for Environmental Toxicology of Haikou, Hainan University, Haikou 570228, China
| | - Jie Hu
- College of Ecology and Environment, Hainan University, Haikou 570228, China; (C.L.); (Q.W.); (R.X.); (G.G.); (J.H.); (T.L.); (J.W.); (S.H.)
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China
- Center for Eco-Environmental Restoration Engineering of Hainan Province, Haikou 570228, China
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
- Key Laboratory for Environmental Toxicology of Haikou, Hainan University, Haikou 570228, China
| | - Tinghang Li
- College of Ecology and Environment, Hainan University, Haikou 570228, China; (C.L.); (Q.W.); (R.X.); (G.G.); (J.H.); (T.L.); (J.W.); (S.H.)
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China
- Center for Eco-Environmental Restoration Engineering of Hainan Province, Haikou 570228, China
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
- Key Laboratory for Environmental Toxicology of Haikou, Hainan University, Haikou 570228, China
| | - Junfeng Wang
- College of Ecology and Environment, Hainan University, Haikou 570228, China; (C.L.); (Q.W.); (R.X.); (G.G.); (J.H.); (T.L.); (J.W.); (S.H.)
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China
- Center for Eco-Environmental Restoration Engineering of Hainan Province, Haikou 570228, China
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
- Key Laboratory for Environmental Toxicology of Haikou, Hainan University, Haikou 570228, China
| | - Shan Hu
- College of Ecology and Environment, Hainan University, Haikou 570228, China; (C.L.); (Q.W.); (R.X.); (G.G.); (J.H.); (T.L.); (J.W.); (S.H.)
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China
- Center for Eco-Environmental Restoration Engineering of Hainan Province, Haikou 570228, China
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
- Key Laboratory for Environmental Toxicology of Haikou, Hainan University, Haikou 570228, China
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