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Sela A, Moussa S, Rodov V, Iasur Kruh L, Poverenov E. Carboxymethyl chitosan-N-alkylimine derivatives: Synthesis, characterization and use for preservation of symbiotic biofertilizer bacteria on chickpea seeds. Int J Biol Macromol 2024; 262:130057. [PMID: 38340940 DOI: 10.1016/j.ijbiomac.2024.130057] [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: 06/26/2023] [Revised: 01/21/2024] [Accepted: 02/06/2024] [Indexed: 02/12/2024]
Abstract
A series of carboxymethyl chitosan-N-alkylimine derivatives with side chain length of 4 to 10 carbons (CMCS-n, n = 4, 6, 8, 10) was prepared in a one-step solvent-free synthesis using Schiff base chemistry. The modified polysaccharides were characterized by their spectral, thermal and physical properties. The prepared polymers demonstrated an ability to spontaneous self-assembly with a clear correlation between critical aggregation concentration and the chain length of the alkyl substituent. N-alkylimine-CMCS derivatives were found to deliver hydrophobic (curcumin) and hydrophilic (ascorbic acid) active agents in unfavorable environments of water and oil, respectively. Then, N-alkylimine-CMCS derivatives were used as a platform for the delivery of symbiotic gram-positive bacteria Bacillus subtilis CJ onto chickpea seeds. These bacteria demonstrated a significantly higher survival rate (106 CFU/mL) in dried CMCS-6 derivative film than in other films tested. The seeds treated with N-alkylimine-CMCS coatings that contained B. subtilis CJ demonstrated up to 100-fold increase of this bacterial population on the seedlings in comparison to the pristine CMCS.
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Affiliation(s)
- Aviad Sela
- Agro-nanotechnology and Advanced Materials Research Center, Department of Food Science, Agriculture Research Organization, The Volcani Institute, Rishon LeZion, Israel; Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Suzana Moussa
- Department of Biotechnology Engineering, Braude College of Engineering, Carmiel, Israel
| | - Victor Rodov
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Institute, Rishon LeZion, Israel
| | - Lilach Iasur Kruh
- Department of Biotechnology Engineering, Braude College of Engineering, Carmiel, Israel
| | - Elena Poverenov
- Agro-nanotechnology and Advanced Materials Research Center, Department of Food Science, Agriculture Research Organization, The Volcani Institute, Rishon LeZion, Israel.
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Sela A, Shkuri N, Tish N, Vinokur Y, Rodov V, Poverenov E. Carboxymethyl chitosan-quercetin conjugate: A sustainable one-step synthesis and use for food preservation. Carbohydr Polym 2023; 316:121084. [PMID: 37321704 DOI: 10.1016/j.carbpol.2023.121084] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/11/2023] [Accepted: 05/30/2023] [Indexed: 06/17/2023]
Abstract
Bioactive polysaccharide, carboxymethyl chitosan-quercetin (CMCS-q) was prepared by a one-step reaction utilizing Schiff base chemistry. Notably, the presented conjugation method involves neither radical reactions nor auxiliary coupling agents. Physicochemical properties and bioactivity of the modified polymer were studied and compared to those of the pristine carboxymethyl chitosan, CMCS. The modified CMCS-q demonstrated antioxidant activity by TEAC assay and antifungal activity by inhibiting spore germination of plant pathogen Botrytis cynerea. Then, CMCS-q was applied as an active coating on fresh-cut apples. The treatment resulted in enhanced firmness, inhibited browning and improved microbiological quality of the food product. The presented conjugation method allows retaining antimicrobial and antioxidant activity of quercetin moiety in the modified biopolymer. This method can be further used as a platform for binding ketone/aldehyde-containing polyphenols and other natural compounds to form various bioactive polymers.
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Affiliation(s)
- Aviad Sela
- Agro-Nanotechnology and Advanced Materials Center, Department of Food Science, Agricultural Research Organization, The Volcani Institute, Rishon LeZion 7505101, Israel; Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel.
| | - Noa Shkuri
- Agro-Nanotechnology and Advanced Materials Center, Department of Food Science, Agricultural Research Organization, The Volcani Institute, Rishon LeZion 7505101, Israel; Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel.
| | - Nimrod Tish
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Institute, Rishon LeZion 7505101, Israel; The Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel.
| | - Yakov Vinokur
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Institute, Rishon LeZion 7505101, Israel.
| | - Victor Rodov
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Institute, Rishon LeZion 7505101, Israel.
| | - Elena Poverenov
- Agro-Nanotechnology and Advanced Materials Center, Department of Food Science, Agricultural Research Organization, The Volcani Institute, Rishon LeZion 7505101, Israel.
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The osteogenesis and the biologic mechanism of thermo-responsive injectable hydrogel containing carboxymethyl chitosan/sodium alginate nanoparticles towards promoting osteal wound healing. Int J Biol Macromol 2022; 224:533-543. [DOI: 10.1016/j.ijbiomac.2022.10.142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/01/2022] [Accepted: 10/15/2022] [Indexed: 11/05/2022]
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Li H, Long M, Su H, Tan L, Shi X, Du Y, Luo Y, Deng H. Carboxymethyl chitosan assembled piezoelectric biosensor for rapid and label-free quantification of immunoglobulin Y. Carbohydr Polym 2022; 290:119482. [DOI: 10.1016/j.carbpol.2022.119482] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/10/2022] [Indexed: 11/02/2022]
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Lei J, Shi L, Liu W, Li B, Jin Y. Portable and sensitive detection of cancer cells via a handheld luminometer. Analyst 2022; 147:3219-3224. [DOI: 10.1039/d2an00666a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and sensitive chemiluminescent method for portable detection of cancer cells via a handheld luminometer.
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Affiliation(s)
- Jing Lei
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Lu Shi
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Wei Liu
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Baoxin Li
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Yan Jin
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
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