Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 87, Issue -, Pages 77-84Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.lwt.2017.08.052
Keywords
Fresh-cut vegetable; Electronic nose; Freshness; Microbial spoilage; Shelf life
Categories
Funding
- Jiangsu Province (China) Key Project in Agriculture [BE2015310217]
- Jiangsu Province (China) Collaborative innovation Center for Food Safety and Quality Control Industry Development Program
- Jiangsu Province(China) infrastructure Project [BM2014051]
Ask authors/readers for more resources
This study investigated a freshness assessment method utilizing electronic nose (e-nose) for fresh-cut green bell pepper (Capsicum annuum var. grossum) stored at 7 +/- 1 degrees C. Physicochemical results showed that the fresh-cut green bell peppers were fresh until 5 days and became spoiled at 7 days, particularly as evidenced by a surge in aerobic plate count and malondialdehyde content on subsequent days. The e-nose data combined hierarchical cluster analysis (HCA) can preliminarily distinguish between fresh (days 0,1, 3 and 5) and spoiled (days 7 and 9) samples. Principal component analysis (PCA) result showed that days 0 and 1 samples were mixed together in PCA plot, and the other different groups can be obtained according to the different sampling days. Partial least squares (PLS) statistical model (R-2 = 0.9783, RMSE = 0.3317) was used to correlate the e-nose data with the aerobic plate counts. The results suggested the promising possibility of e-nose system for monitoring freshness of fresh-cut green bell pepper. (C) 2017 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available