pH indicator films fabricated from soy protein isolate modified with chitin nanowhisker and Clitoria ternatea flower extract
Sensor films are finding wide range of applications. Different type of sensing films is fabricated for the identification of chemicals, ions, heavy metals, changes in the pH, etc. The present report is on the fabrication of pH sensitive films from completely natural sources-soy protein isolate, chit...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-01-01
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| Series: | Current Research in Food Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2665927122000570 |
| _version_ | 1811202228993654784 |
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| author | Rekha Rose Koshy Arunima Reghunadhan Siji K. Mary Prasanth S. Pillai Seno Joseph Laly A. Pothen |
| author_facet | Rekha Rose Koshy Arunima Reghunadhan Siji K. Mary Prasanth S. Pillai Seno Joseph Laly A. Pothen |
| author_sort | Rekha Rose Koshy |
| collection | DOAJ |
| description | Sensor films are finding wide range of applications. Different type of sensing films is fabricated for the identification of chemicals, ions, heavy metals, changes in the pH, etc. The present report is on the fabrication of pH sensitive films from completely natural sources-soy protein isolate, chitin nano whiskers and flower extract. The highly crystalline chitin nano whiskers (CNW) were extracted from prawn shell under neutral condition via steam explosion technique. Multifunctional Soy protein isolate (SPI) films were prepared by adding chitin nanowhisker and Clitoria ternatea flower extract and its effect on thermal, mechanical and moisture properties of SPI film was investigated. The isolated CNW presented a needle like morphology with a diameter of 10–50 nm and a crystallinity index of 99.67%. The extracted chitin nanowhisker was used to prepare biodegradable films with soy protein isolate immobilized with anthocyanin from Clitoria ternatea flower extract. The prepared Soy protein -chitin nanowhisker films was found to have a tensile strength of about 15.45 ± 0.97 MPa with 8% chitin nanowhisker addition. The addition of CTE was found to decrease the tensile strength of SPI-CNW film but was found to make the film pH sensitive. The developed indicator film showed visible color changes in acidic and basic medium and hence can be used to monitor the freshness of food materials. |
| first_indexed | 2024-04-12T02:35:21Z |
| format | Article |
| id | doaj.art-392efd5e6f194bcdb9807981090e3e31 |
| institution | Directory Open Access Journal |
| issn | 2665-9271 |
| language | English |
| last_indexed | 2024-04-12T02:35:21Z |
| publishDate | 2022-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Current Research in Food Science |
| spelling | doaj.art-392efd5e6f194bcdb9807981090e3e312022-12-22T03:51:34ZengElsevierCurrent Research in Food Science2665-92712022-01-015743751pH indicator films fabricated from soy protein isolate modified with chitin nanowhisker and Clitoria ternatea flower extractRekha Rose Koshy0Arunima Reghunadhan1Siji K. Mary2Prasanth S. Pillai3Seno Joseph4Laly A. Pothen5Postgraduate and Research Department of Chemistry, Bishop Moore College, Mavelikara, 690101, Kerala, India; Postgraduate and Research Department of Chemistry, CMS College, Kottayam, 686001, Kerala, IndiaDepartment of Chemistry, TKM College of Engineering, Karicode, Kollam, Kerala, 691005, IndiaPostgraduate and Research Department of Chemistry, Bishop Moore College, Mavelikara, 690101, Kerala, India; Postgraduate and Research Department of Chemistry, CMS College, Kottayam, 686001, Kerala, IndiaUniversity of Saskatchewan, Saskatoon, SK, CanadaPostgraduate and Research Department of Chemistry, CMS College, Kottayam, 686001, Kerala, IndiaPostgraduate and Research Department of Chemistry, CMS College, Kottayam, 686001, Kerala, India; International and Interuniversity Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University Kottayam, India; Corresponding author. Postgraduate and Research Department of Chemistry, CMS College, Kottayam, 686001, Kerala, India.Sensor films are finding wide range of applications. Different type of sensing films is fabricated for the identification of chemicals, ions, heavy metals, changes in the pH, etc. The present report is on the fabrication of pH sensitive films from completely natural sources-soy protein isolate, chitin nano whiskers and flower extract. The highly crystalline chitin nano whiskers (CNW) were extracted from prawn shell under neutral condition via steam explosion technique. Multifunctional Soy protein isolate (SPI) films were prepared by adding chitin nanowhisker and Clitoria ternatea flower extract and its effect on thermal, mechanical and moisture properties of SPI film was investigated. The isolated CNW presented a needle like morphology with a diameter of 10–50 nm and a crystallinity index of 99.67%. The extracted chitin nanowhisker was used to prepare biodegradable films with soy protein isolate immobilized with anthocyanin from Clitoria ternatea flower extract. The prepared Soy protein -chitin nanowhisker films was found to have a tensile strength of about 15.45 ± 0.97 MPa with 8% chitin nanowhisker addition. The addition of CTE was found to decrease the tensile strength of SPI-CNW film but was found to make the film pH sensitive. The developed indicator film showed visible color changes in acidic and basic medium and hence can be used to monitor the freshness of food materials.http://www.sciencedirect.com/science/article/pii/S2665927122000570pH sensitive filmSoy protein isolateSteam explosionChitin nanowhiskerCO2 detection |
| spellingShingle | Rekha Rose Koshy Arunima Reghunadhan Siji K. Mary Prasanth S. Pillai Seno Joseph Laly A. Pothen pH indicator films fabricated from soy protein isolate modified with chitin nanowhisker and Clitoria ternatea flower extract Current Research in Food Science pH sensitive film Soy protein isolate Steam explosion Chitin nanowhisker CO2 detection |
| title | pH indicator films fabricated from soy protein isolate modified with chitin nanowhisker and Clitoria ternatea flower extract |
| title_full | pH indicator films fabricated from soy protein isolate modified with chitin nanowhisker and Clitoria ternatea flower extract |
| title_fullStr | pH indicator films fabricated from soy protein isolate modified with chitin nanowhisker and Clitoria ternatea flower extract |
| title_full_unstemmed | pH indicator films fabricated from soy protein isolate modified with chitin nanowhisker and Clitoria ternatea flower extract |
| title_short | pH indicator films fabricated from soy protein isolate modified with chitin nanowhisker and Clitoria ternatea flower extract |
| title_sort | ph indicator films fabricated from soy protein isolate modified with chitin nanowhisker and clitoria ternatea flower extract |
| topic | pH sensitive film Soy protein isolate Steam explosion Chitin nanowhisker CO2 detection |
| url | http://www.sciencedirect.com/science/article/pii/S2665927122000570 |
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