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Chen C, Ye PP, Cui FJ, Tan M, Zhang HB, Zhou TL, Shi JC, Shu XQ, Chen ZW. Overall quality changes and deterioration mechanism of fragrant rapeseed oils during 6-Month storage. Food Chem 2024; 439:138116. [PMID: 38064830 DOI: 10.1016/j.foodchem.2023.138116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 01/10/2024]
Abstract
The strong-fragrant rapeseed oil (SFRO) is a popular rapeseed oil in China with a low refining degree only degumming with hot water, which remarkably affects its storage stability. The present study compared the overall changes of physical/chemical/nutrient quality of FROs at various temperatures, light wavelengths and headspace volumes. Results showed that red light (680 nm) had a most significant adverse effect on the overall quality of SFRO with the higher correlation coefficients to PV and TOTOX of 0.71 and 0.70, and lower correlation coefficients to chlorophyll and tocopherol of -0.95 and -0.53, respectively. Further studies revealed that red light accelerated the oxidation of fragrant rapeseed oils by degrading chlorophyll to initiate the photo-oxidation process and synthesize high amount of secondary oxidation products including aliphatic and aromatic oxidized compounds from linolenic acid. These findings provided a reference to control the deterioration of FROs by preventing the transmittance of red light.
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Affiliation(s)
- Chen Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Ping-Ping Ye
- Jiangsu Hefeng Grain and Oil Industry Co., Ltd., Yancheng 212002, PR China; Yancheng Hengxi Biotechnology Co., Ltd., Yancheng 224100, PR China; Jiangsu Jiafeng Grain and Oil Industry Co., Ltd., Yancheng 224100, PR China
| | - Feng-Jie Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Ming Tan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Hai-Bo Zhang
- Jiangsu Hefeng Grain and Oil Industry Co., Ltd., Yancheng 212002, PR China; Yancheng Hengxi Biotechnology Co., Ltd., Yancheng 224100, PR China; Jiangsu Jiafeng Grain and Oil Industry Co., Ltd., Yancheng 224100, PR China
| | - Tong-Lin Zhou
- Jiangsu Hefeng Grain and Oil Industry Co., Ltd., Yancheng 212002, PR China; Yancheng Hengxi Biotechnology Co., Ltd., Yancheng 224100, PR China; Jiangsu Jiafeng Grain and Oil Industry Co., Ltd., Yancheng 224100, PR China
| | - Jian-Cheng Shi
- Jiangsu Hefeng Grain and Oil Industry Co., Ltd., Yancheng 212002, PR China; Jiangsu Jiafeng Grain and Oil Industry Co., Ltd., Yancheng 224100, PR China
| | - Xue-Quan Shu
- Jiangsu Hefeng Grain and Oil Industry Co., Ltd., Yancheng 212002, PR China; Jiangsu Jiafeng Grain and Oil Industry Co., Ltd., Yancheng 224100, PR China
| | - Zhi-Wei Chen
- Jiangsu Hefeng Grain and Oil Industry Co., Ltd., Yancheng 212002, PR China; Jiangsu Jiafeng Grain and Oil Industry Co., Ltd., Yancheng 224100, PR China.
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Park Y, Jin S, Noda I, Jung YM. Continuing progress in the field of two-dimensional correlation spectroscopy (2D-COS): Part III. Versatile applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 284:121636. [PMID: 36229084 DOI: 10.1016/j.saa.2022.121636] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/30/2022] [Accepted: 07/12/2022] [Indexed: 06/16/2023]
Abstract
In this review, the comprehensive summary of two-dimensional correlation spectroscopy (2D-COS) for the last two years is covered. The remarkable applications of 2D-COS in diverse fields using many types of probes and perturbations for the last two years are highlighted. IR spectroscopy is still the most popular probe in 2D-COS during the last two years. Applications in fluorescence and Raman spectroscopy are also very popularly used. In the external perturbations applied in 2D-COS, variations in concentration, pH, and relative compositions are dramatically increased during the last two years. Temperature is still the most used effect, but it is slightly decreased compared to two years ago. 2D-COS has been applied to diverse systems, such as environments, natural products, polymers, food, proteins and peptides, solutions, mixtures, nano materials, pharmaceuticals, and others. Especially, biological and environmental applications have significantly emerged. This survey review paper shows that 2D-COS is an actively evolving and expanding field.
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Affiliation(s)
- Yeonju Park
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sila Jin
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Isao Noda
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA.
| | - Young Mee Jung
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Republic of Korea; Department of Chemistry, and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Republic of Korea.
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Gkinali AA, Matsakidou A, Paraskevopoulou A. Characterization of Tenebrio molitor Larvae Protein Preparations Obtained by Different Extraction Approaches. Foods 2022; 11:foods11233852. [PMID: 36496659 PMCID: PMC9737764 DOI: 10.3390/foods11233852] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/19/2022] [Accepted: 11/26/2022] [Indexed: 12/03/2022] Open
Abstract
Edible insects have recently attracted research attention due to their nutritional value and low environmental footprint. Tenebrio molitor larva was the first insect species to be classified by European Food Safety Authority (EFSA) as safe for human consumption. However, it is thought that the incorporation of edible insect as an ingredient in a food product would be more appealing to consumers than being visible. The aim of the present study was to determine the physicochemical properties of the larvae meal and protein concentrates. Different methods to extract and recover proteins from defatted (DF) Tenebrio molitor larvae were applied; i.e., alkaline extraction (DF-ASP); isoelectric precipitation after alkaline extraction (DF-AIP); and NaCl treatment (DF-SSP), and the obtained protein fractions were characterized. The DF-ASP exhibited the highest protein extraction/recovery efficiency (>60%), while it was the most effective in decreasing the interfacial tension at the oil/water (o/w) interface. The DF-AIP had the highest protein content (75.1%) and absolute values of ζ-potential and the best ability to retain water (10.54 g/g) and stabilize emulsions at pH 3.0. The DF-SSP protein preparation had the highest oil binding capacity (8.62%) and solubility (~88%) at acidic pHs and the highest emulsifying activity (~86 m2/g). Electrophoresis of the protein preparations revealed proteins with different molecular weights, while the protein secondary structure was dominated by β-structures and α-helix. Protein concentrates with different properties were able to be recovered from Tenebrio molitor larvae, that could affect their interactions with other food ingredients and their behavior during processing or storage. These findings would be valuable guidance for the technological exploitation of larvae protein preparations in the development of food formulations.
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