Gels | |
Multicolor PEGDA/LCNF Hydrogel in the Presence of Red Cabbage Anthocyanin Extract | |
Jose Alberto Mendez1  Anggi Eka Putra2  I Putu Mahendra2  M Alvien Ghifari2  Erlin Arda Safitri2  Demi Dama Yanti2  Yusnaidar Yusnaidar3  Bambang Ariwahjoedi4  | |
[1] Enginyeria Quimica, Universitat de Girona, 17003 Girona, Spain;Program Studi Kimia, Jurusan Sains, Institut Teknologi Sumatera, Lampung Selatan 35365, Indonesia;Program Studi Pendidikan Kimia, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Jambi, Jambi 36361, Indonesia;Program Studi Teknik Material, Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera, Lampung Selatan 35365, Indonesia; | |
关键词: red cabbage anthocyanin; colorimetric indicator; PEGDA; LCNF; | |
DOI : 10.3390/gels7040160 | |
来源: DOAJ |
【 摘 要 】
Colorimetric indicator gels were developed by incorporating anthocyanin (AC) obtained from red cabbage into poly (ethylene glycol) diacrylate (PEGDA)-based hydrogel containing lignocellulose nanofiber (LCNF). The PEGDA-based hydrogel was prepared by mixing all of the mentioned components at the specific composition, and the hydrogels were cured under UV light (245 nm) for 1 min. The pH-response, UV absorption, swelling ratio, and mechanical properties of PEGDA/LCNF were determined. It was further found that PEGDA and LCNF mount play an important role in adjusting the mechanical properties of PEGDA/LCNF. In general, the presence of LCNF improved the mechanical properties and swelling ratio of PEGDA. The incorporation of red cabbage anthocyanin into the PEGDA/LCNF film showed multicolor response when specific pH buffers were introduced. Based on the multicolor response of PEGDA/LCNF/CA, this gel film indicator can be developed as a food freshness indicator that focuses on the detection of ammonia and amine compound.
【 授权许可】
Unknown