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Preparation of composite films composed of polyvinyl alcohol, shellac and carboxymethyl chitosan-CuO nanoparticles and their application in food preservation. JOURNAL OF POLYMER RESEARCH 2023. [DOI: 10.1007/s10965-023-03438-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Li K, Tang B, Zhang W, Tu X, Ma J, Xing S, Shao Y, Zhu J, Lei F, Zhang H. A novel approach for authentication of shellac resin in the shellac-based edible coatings: Contain shellac or not in the fruit wax preservative coating. Food Chem X 2022; 14:100349. [PMID: 35663597 PMCID: PMC9156870 DOI: 10.1016/j.fochx.2022.100349] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/23/2022] [Accepted: 05/23/2022] [Indexed: 12/18/2022] Open
Abstract
A novel approach based on targeted metabolomics for the authentication of shellac resin in shellac-based coating solution was established for the first time. The authentication of shellac resin was skillfully transformed by means of taking monomer compounds constituting shellac resin (fatty acids and terpenic acids) as targeted metabolites. The feasibility of the authenticated approach of shellac resin in commercial coating solution products for fruit preservation was verified by taking common metabolites as the biomarkers.
As an edible coating substrate, the detection of shellac resin has always been an intractable problem. In this paper, an authentication method of shellac resin in shellac-based edible coatings was established. Results showed that the authentication of shellac resin could be skillfully transformed as the identification of 13 targeted metabolites which were monomer compounds of shellac resin. The 13 targeted metabolites were further divided into 6 differential metabolites and 7 common metabolites with the metabonomic method and difference analysis of targeted metabolite contents. Then, four commercial soi-disant shellac-based coating solutions were selected to verify the feasibility of this method, and 7 common metabolites were detected in only one commercial sample, highly consistent with the results of shellac resin. All the above results indicated that the targeted metabolomics approach established in this study could provide a scientific basis for the qualitative authentication of shellac resin in the preservation coating.
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Affiliation(s)
- Kun Li
- Xinyang Agriculture and Forestry University, Xinyang 464000, China
| | - Baoshan Tang
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, Yunnan 650233, China
| | - Wenwen Zhang
- Xinyang Agriculture and Forestry University, Xinyang 464000, China
| | - Xinghao Tu
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, Yunnan 650233, China
| | - Jinju Ma
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, Yunnan 650233, China
| | - Shujie Xing
- Xinyang Agriculture and Forestry University, Xinyang 464000, China
| | - Ying Shao
- Xinyang Agriculture and Forestry University, Xinyang 464000, China
| | - Jing Zhu
- Xinyang Agriculture and Forestry University, Xinyang 464000, China
| | - Fuhou Lei
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi University for Nationalities, Nanning 530006, China
| | - Hong Zhang
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, Yunnan 650233, China
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Natural polysaccharides and proteins applied to the development of gastroresistant multiparticulate systems for anti-inflammatory drug delivery – A systematic review. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Li K, Tang B, Zhang W, Shi Z, Tu X, Li K, Xu J, Ma J, Liu L, Zhang H. Formation Mechanism of Bleaching Damage for a Biopolymer: Differences between Sodium Hypochlorite and Hydrogen Peroxide Bleaching Methods for Shellac. ACS OMEGA 2020; 5:22551-22559. [PMID: 32923814 PMCID: PMC7482257 DOI: 10.1021/acsomega.0c03178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
Bleached shellac, a widely used material in food processing and products, was deeply affected in terms of structures and properties by the bleaching method. In the present study, a marked difference was observed between the damage performances of sodium hypochlorite-bleached shellac (SHBS) and hydrogen peroxide-bleached shellac (HPBS). The main bleaching damage reactions of sodium hypochlorite were the addition of double bonds to generate chlorine and the oxidation of hydroxyl to form aldehydes or ketones. In the case of hydrogen peroxide, degradation of shellac resin was caused by the hydrolysis of ester bonds and the oxidation of hydroxyl groups to form aldehydes and ketones, as well as carboxylic acids with deep oxidation. Based on the structural characterization of shellac resin, the bleaching damages were affected by the bleaching agent via the oxidizable groups, such as the unsaturated double bonds, hydroxyl and aldehyde groups in cyclic terpenes, and fatty acid chains. The differences could be attributed to the action of sodium hypochlorite on the hydroxyl group of aldehyde or ketone. Conversely, hydrogen peroxide bleaching oxidized the hydroxyl group and aldehyde group to carboxylic acid and initiated the hydrolysis reaction of the ester bond of the shellac resin, leading to the degradation of the resin. Thus, understanding the mechanism underlying the bleaching damage could provide a scientific basis for the subsequent targeted regulation of bleaching damage.
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Affiliation(s)
- Kun Li
- Research
Institute of Resources Insects, Chinese
Academy of Forestry, Kunming 650233, Yunnan, China
| | - Baoshan Tang
- Research
Institute of Resources Insects, Chinese
Academy of Forestry, Kunming 650233, Yunnan, China
- College
of Forestry, Southwest Forestry University, Kunming 650224, Yunnan, China
| | - Wenwen Zhang
- Research
Institute of Resources Insects, Chinese
Academy of Forestry, Kunming 650233, Yunnan, China
| | - Zhengjun Shi
- College
of Forestry, Southwest Forestry University, Kunming 650224, Yunnan, China
| | - Xinghao Tu
- Key
Laboratory of Tropical Fruit Biology, Ministry of Agriculture, South
Subtropical Crops Research Institute, Chinese
Academy of Tropical Agricultural Sciences, Zhanjiang 524091, China
| | - Kai Li
- Research
Institute of Resources Insects, Chinese
Academy of Forestry, Kunming 650233, Yunnan, China
| | - Juan Xu
- Research
Institute of Resources Insects, Chinese
Academy of Forestry, Kunming 650233, Yunnan, China
| | - Jinju Ma
- Research
Institute of Resources Insects, Chinese
Academy of Forestry, Kunming 650233, Yunnan, China
| | - Lanxiang Liu
- Research
Institute of Resources Insects, Chinese
Academy of Forestry, Kunming 650233, Yunnan, China
| | - Hong Zhang
- Research
Institute of Resources Insects, Chinese
Academy of Forestry, Kunming 650233, Yunnan, China
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Joshi SR, Sharma A, Kim GH, Jang J. Low cost synthesis of reduced graphene oxide using biopolymer for influenza virus sensor. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 108:110465. [DOI: 10.1016/j.msec.2019.110465] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 11/01/2019] [Accepted: 11/17/2019] [Indexed: 01/30/2023]
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