Comparative evaluation of mathematical models for release of antioxidant from chitosan films prepared by different drying methods

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Thakhiew W., Waisayawan P., Devahastin S.

ผู้เผยแพร่: Taylor and Francis Group

ปีที่เผยแพร่ (ค.ศ.): 2011

วารสาร: Drying Technology (0737-3937)

Volume number: 29

Issue number: 12

หน้าแรก: 1396

หน้าสุดท้าย: 1403

จำนวนหน้า: 8

นอก: 0737-3937

eISSN: 1532-2300

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-79960760456&doi=10.1080%2f07373937.2011.588816&partnerID=40&md5=9a1a9a122897c134d8bcb9f47c2ec375

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

Antioxidants are often added to many types of food packagings, especially packaging films, to enhance their effectiveness in protecting food from the environment. This positive action is possible due to release of the agents from the film matrix into food to reduce oxidation, thus extending the product's shelf life. For effective design of antioxidant-added films, the release characteristics of antioxidant from the films under various conditions need to be known and predicted. The aim of this study was to compare various simple mathematical models for prediction of the release of antioxidant from edible chitosan films into distilled water at room temperature. Chitosan films were prepared via hot air drying, vacuum drying, and low-pressure superheated steam drying. Models with different expressions for the effective diffusion coefficient were tested. The model equations were solved numerically using COMSOL Multiphysics software (Comsol AB, Stockholm, Sweden). The prediction efficiency of the models was verified by comparing the predicted release kinetics of the antioxidant, in terms of the total phenolics content (TPC), with the experimental data available in the literature. It was found that the model assuming the effective diffusion coefficient as a function of the phenolics concentration gave the best agreement with the experimental results. ฉ 2011 Taylor & Francis Group, LLC.

คำสำคัญ

Effective diffusion coefficient, Swelling