Edible films and coatings have been developed based on numerous natural biopolymers, which have been used to increase fresh-cut fruit shelf life. Here, we present the preparation, characteristics and preservation effect of water-soluble chitosan (WSC) and water-insoluble chitosan (WIC) from Tenebrio molitor waste (TMW) on fresh-cut apple slices. WIC was isolated from TMW in four steps and WSC was obtained from the WIC solution by 8% HO treatment at 40 °C for 3 h. WIC and WSC were characterized by molecular weight, Fourier transform infrared spectroscopy (FTIR), morphology analysis, etc. The preservation effects of WIC and WSC for the fresh-cut apple slices were evaluated by the indexes of browning, weight loss, firmness and titratable acidity. The results showed that WSC was soluble in water and that the chemical structures of WIC and WSC were similar. However, their crystallinity, morphology and thermal properties were different. Both WSC and WIC had a good preservation effect on fresh-cut fruits. Compared with WIC, WSC might be more suitable for use in the food industry owing to its water solubility.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ijbiomac.2019.04.094 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Can Nonexperimental Methods Provide Unbiased Estimates of a Breastfeeding Intervention? A Within-Study Comparison of Peer Counseling in Oregon.
Eval Rev
September 2020
Oregon WIC Program, Portland, OR, USA.
Between July 2005 and July 2007, the Oregon Supplemental Nutrition Program for Women, Infants and Children program conducted the largest randomized field experiment (RFE) ever in the United States to assess the effectiveness of a low-cost peer counseling intervention to promote exclusive breastfeeding. We undertook a within-study comparison of the intervention using unique administrative data between July 2005 and July 2010. We found no difference between experimental and nonexperimental estimates but failed to determine correspondence based on more stringent criteria.
View Article and Find Full Text PDFComparative preservation effect of water-soluble and insoluble chitosan from Tenebrio molitor waste.
Int J Biol Macromol
July 2019
Chongqing Engineering Research Center for Processing & Storage of Distinct Agricultural Products, Chongqing Technology and Business University, Chongqing 400067, China.
Edible films and coatings have been developed based on numerous natural biopolymers, which have been used to increase fresh-cut fruit shelf life. Here, we present the preparation, characteristics and preservation effect of water-soluble chitosan (WSC) and water-insoluble chitosan (WIC) from Tenebrio molitor waste (TMW) on fresh-cut apple slices. WIC was isolated from TMW in four steps and WSC was obtained from the WIC solution by 8% HO treatment at 40 °C for 3 h.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!