Thông tin chung
  English
  Đề tài NC khoa học
  Bài báo, báo cáo khoa học
  Hướng dẫn Sau đại học
  Sách và giáo trình
  Các học phần và môn giảng dạy
  Giải thưởng khoa học, Phát minh, sáng chế
  Khen thưởng
  Thông tin khác
  Tài liệu tham khảo
  Hiệu chỉnh
 
Số người truy cập: 107,409,179

 Improvement of hydration properties of pectin/nanochitosan films
Tác giả hoặc Nhóm tác giả: Thi Minh Phương Ngo
Nơi đăng: Proceedings of 2020 Applying New Technology in Green Buildings (ATiGB), Hybrid Conference, IEEE Xplore; Số: 978-1-7281-8658-0/20/$31.00 ©2020 IEEE;Từ->đến trang: 120-124;Năm: 2021
Lĩnh vực: Kỹ thuật; Loại: Bài báo khoa học; Thể loại: Quốc tế
TÓM TẮT
This study aims to develop hydration properties of pectin/nanochitosan films at different pectin: nanochitosan ratios (100:0; 75:25; 50:50; 25:75 and 0:100). The blending of pectin with nanochitosan at ratio of 50:50 (P/NaCS2) reduced moisture content, swelling degree, water solubility. Moisture sorption isotherms for all P/NaCS films had a sigmoidal shape. Moisture sorption isotherms indicated hydrophobic character of P/NaCS films. Moisture sorption isotherm showed that P/NaCS films should be used at lower than 86%RH. Some models such as GAB, BET, Peleg and Oswin were investigated for predicting the equilibrium moisture content of P/NaCS films. The results showed that the GAB model was the best estimator. SEM micrographs of cross - section morphology of P/NaCS films indicated that certain interactions between pectin and nanochitosan matrix were formed. Therefore, P/NaCS2 films can be used as active packaging to extend the shelf life of food.
ABSTRACT
This study aims to develop hydration properties of pectin/nanochitosan films at different pectin: nanochitosan ratios (100:0; 75:25; 50:50; 25:75 and 0:100). The blending of pectin with nanochitosan at ratio of 50:50 (P/NaCS2) reduced moisture content, swelling degree, water solubility. Moisture sorption isotherms for all P/NaCS films had a sigmoidal shape. Moisture sorption isotherms indicated hydrophobic character of P/NaCS films. Moisture sorption isotherm showed that P/NaCS films should be used at lower than 86%RH. Some models such as GAB, BET, Peleg and Oswin were investigated for predicting the equilibrium moisture content of P/NaCS films. The results showed that the GAB model was the best estimator. SEM micrographs of cross - section morphology of P/NaCS films indicated that certain interactions between pectin and nanochitosan matrix were formed. Therefore, P/NaCS2 films can be used as active packaging to extend the shelf life of food.
© Đại học Đà Nẵng
 
 
Địa chỉ: 41 Lê Duẩn Thành phố Đà Nẵng
Điện thoại: (84) 0236 3822 041 ; Email: dhdn@ac.udn.vn