Antibacterial activity of chitosan grafting nisin: Preparation and characterization

Zhu, Xiaoming; Wu, Huan; Yang, Jing; Tong, Jun; Yi, Jiayan; Hu, Zuming; Hu, Jin; Wang, Tan; Fan, Lihong

doi:10.1016/j.reactfunctpolym.2015.04.009

Cited by 35 publications

(15 citation statements)

References 27 publications

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“…The antibacterial or antifungal activity of chitosan depends on the presence of positive charge numbers created on chitosan chains by DDA step, could be expected to have a more potent antibacterial activity. From the obtained results, this concluded that the biological activity of both chitin and chitosan isolated from Atlantic ocean as a source after DM, DP, DA steps had very high antibacterial activity in comparison with biopolymers (chitin and chitosan) from different other sources [97][98][99][100]. …”

Section: Deacetylation Degree (Dda) Measurements Of Chitosan By Diffementioning

confidence: 99%

Chitin and chitosan from Brazilian Atlantic Coast: Isolation, characterization and antibacterial activity

Abdel-Rahman

Hrdina

Abdel-Mohsen

et al. 2015

International Journal of Biological Macromolecules

127

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Section: Deacetylation Degree (Dda) Measurements Of Chitosan By Diffementioning

confidence: 99%

Chitin and chitosan from Brazilian Atlantic Coast: Isolation, characterization and antibacterial activity

Abdel-Rahman

Hrdina

Abdel-Mohsen

et al. 2015

International Journal of Biological Macromolecules

127

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“…Nisin, produced by Lactococcus lactis ssp. lactis, is generally regarded as safe and has been approved as a natural food preservative by the World Health Orga-nization (Zhu et al, 2015). Nisin has received special attention in the food industry due to its desired inhibitory effect on a large number of gram-positive bacteria, including L. monocytogenes and Staphylococcus aureus.…”

Section: Introductionmentioning

confidence: 99%

Anti-listeria effects of chitosan-coated nisin-silica liposome on Cheddar cheese

Cui

Li³

et al. 2016

Journal of Dairy Science

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Listeria monocytogenes poses an increasing challenge to cheese production. To minimize the risk of bacterial contamination, a chitosan-coated nisin-silica liposome was engineered for the present study. We investigated the characteristics of nisin-silica liposomes and the anti-listeria effects of a chitosan-coated nisin-silica liposome on Cheddar cheese. The encapsulation efficiency of nisin in a liposome was sharply increased after it was adsorbed on a silica particle surface. Chitosan-coated nisin-silica liposomes displayed sustained antibacterial activity against L. monocytogenes, without affecting the sensory properties of the cheese. Chitosan-coated nisin-silica liposomes could be a promising active antimicrobial for cheese preservation.

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“…Beberapa penelitian menunjukkan efektivitas nisin pada konsentrasi 0,6 % (b/v) sebagai antibakteri pada bakteri Gram-positif lebih besar dibandingkan bakteri Gram-negatif (Sanjurjo et al, 2006;Adhikari et al, 2012). Penambahan nisin pada kitosan akan menambah gugus-gugus aktif dalam lapisan, sehingga menghasilkan spektrum penghambatan bakteri yang lebih luas (Pranoto et al, 2005;Zhu et al, 2015;Neetoo, 2016).…”

Section: Latar Belakangunclassified

Pengaruh Pelapisan Kitosan-Nisin terhadap Kualitas Ikan Sidat (Anguilla bicolor bicolor) selama Masa Penyimpanan pada Suhu Rendah

2019

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Telah dilakukan penelitian mengenai preparasi dan karakterisasi pelapisan kitosan nisin terhadap kualitas ikan sidat (Anguilla bicolor bicolor) selama penyimpanan pada suhu rendah. Penyimpanan dilakukan selama 8 hari pada suhu 5 ± 2 °C. Nisin sebanyak (0, 2, 4, 6 dan 8 g) ditambahkan ke dalam larutan kitosan 1% (b/v), sehingga diperoleh lima larutan pelapis, yaitu kitosan 1,0% dan kitosan-nisin: 0,2; 0,4; 0,6 dan 0,8% (b/v). Pelapis kitosan-nisin optimal diketahui melalui pengamatan terhadap perubahan fisik daging. Tebal lapisan kitosan-nisin diamati menggunakan analisis SEM. Parameter yang diukur selama penyimpanan adalah nilai pH, nilai jumlah cemaran mikroba dengan metode Total Plate Count (TPC), kadar air, kadar lemak dan kadar protein. Hasil penelitian menunjukkan bahwa berdasarkan perubahan fisik selama penyimpanan, konsentrasi kitosan-nisin sebesar 0,6% (b/v) merupakan konsentrasi optimal untuk mempertahankan kualitas ikan sidat. Tebal lapisan kitosan-nissin adalah (0,529 − 0,554) mm. Ikan sidat terlapis kitosan-nisin mengalami penurunan kadar proksimat (air, lemak dan protein), peningkatan nilai pH dan jumlah cemaran mikroba yang lebih rendah dibandingkan ikan tanpa pelapisan. Hal tersebut menunjukkan bahwa pelapisan kitosan-nisin pada ikan sidat dapat mempertahankan kualitas ikan sidat selama penyimpanan pada suhu rendah.Effect of Chitosan-Nisin Coating on Quality of Eel (Anguilla bicolor bicolor) during the Storage Period at Low Temperature. The research of the preparation and characterization of chitosan-nisin as a coating layer on the eel (Anguilla bicolor bicolor) were studied. The quality of the eels after coating was observed during storage at low temperatures. The storage was carried out for 8 days at a temperature of 5 ± 2 °C. A various mass of nisin as much as (0, 2, 4, 6 dan 8 g) was added to 1% (b/v) chitosan solution, thus five coating solutions were obtained, namely 1.0% chitosan and chitosan-nissin 0,2; 0,4; 0,6 and 0,8% (w/v), respectively. The optimalization of chitosan-nisin coating was known through the observation of the physical changes of meat. The thickness of chitosan-nisin layer was observed using scanning electron microscopy (SEM) analysis. The parameters measured during storage are pH value, the amount of microbial contamination using the total plate count (TPC) method, water content, fat content and protein content. The results showed that based on the physical changes during storage, the concentration of chitosan-nisin of 0.6% (w/v) was the optimal concentration to maintain the quality of eel. The thickness of the chitosan-nissin layer was observed of 0.529 – 0.554 mm. Chitosan-nisin coated eel decreased proximate levels (water, fat and protein), increased pH value and lower amount of microbial contamination compared to fish without coating. These phenomena show that the chitosan-nisin coating can maintain the quality of eel during storage at low temperatures.

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Antibacterial activity of chitosan grafting nisin: Preparation and characterization

Cited by 35 publications

References 27 publications

Chitin and chitosan from Brazilian Atlantic Coast: Isolation, characterization and antibacterial activity

Chitin and chitosan from Brazilian Atlantic Coast: Isolation, characterization and antibacterial activity

Anti-listeria effects of chitosan-coated nisin-silica liposome on Cheddar cheese

Pengaruh Pelapisan Kitosan-Nisin terhadap Kualitas Ikan Sidat (Anguilla bicolor bicolor) selama Masa Penyimpanan pada Suhu Rendah

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