| 1 | Improvement of the shelf life of grey mullet (Mugil cephalus) fish steaks using edible coatings containing chitosan, nanochitosan, and clove oil during refrigerated storage显示文摘The effects of edible coatings made of chitosan, or chitosan nanoparticles, and their combinations with clove oil on the physical, chemical, microbiological, and sensory properties of grey mullet (Mugil cephalus) steaks during refriger-ated storage (4 °C) for 24 days were evaluated. The data indicated that metrics for all of these characteristics were improved significantly (P ≤ 0.05) in coated fish steak samples compared to the control sample. The coated steaks texture values were higher than those of control sample through storage time with nanochitosan coating containing clove oil having best value 2.51 kg/cm2 among tested samples at the end of storage period. However, pH values of coated samples were lower, a good indicator, than corresponding one of the control (6.46) with nanochitosan coatings with or without clove oil showed low mean values (6.11-6.13). Similar trend regarding chemical indices, i.e. total volatile basic-nitrogen, trimethylamine, peroxide, and thiobarbituric acid reactive substances values for samples coated with nanochitosan with or without clove oil giving better lower values than control or other treatments. Also, the coating delayed microbial (aerobic plate count, psychrotrophic bacteria, yeasts and molds, and total coliform bacteria) growth during the refrigeration storage period, and coated samples produced better results compared to the control sample. Sensory evaluations showed that the treatment enhanced the scores of fish steak samples compared to the control. The results showed that a nanochitosan coating with clove oil was the best treatment prolonged the shelf life of mullet steaks and efficiently maintained the quality attributes to an acceptable level during refrigerated storage for 24 days. Thus, these findings can be bases for producer to provide consumers with fresh fish steaks with good shelf life at refrigerated temperature for up to 24 days. | Samar Aref Ramadan Habiba Noha Morsy Mohamed Abdel-Daim Fatma Zayet | 2022 | Food Production, Processing and Nutrition2022，4，1： | 0 |
| 2 | BanSatDB, a whole-genome-based database of putative and experimentally validated microsatellite markers of three Musa species显示文摘The genus Musa is one of three genera in the family Musaceae, which includes bananas and plantains, which are monocotyledonous plants. Bananas have valuable nutritional content of vitamin C, B6, minerals, and dietary fiber and are a rich food energy source, given that carbohydrates account for 22%–32% of fruit weight. Molecular markers are valuable for crop improvement and population genetics studies. The availability of whole-genome sequence and in silico approaches has revolutionized bulk marker discovery. We describe an online web genomic resource, BanSatDB(http://gffzz72b2fc32a1b54049hqoc5nnf5p0fv6cu0.ffgz.tsg.suse.edu.cn/bansatdb/) having the highest number(>341,000) of putative STR markers from Musa genera so far, represented by three species: M. acuminata(110,000), M. balbisiana(107,000), and M. itinerans(124,000)from 11 chromosomes of each species. BanSatDB has also been populated with 580 validated STR markers from the published literature. It is based on a three-tier architecture using MySQL, PHP and Apache. The markers can be retrieved by use of multiple search parameters including chromosome number(s), microsatellite types(simple or compound),repeat nucleotides(1–6), copy number, microsatellite length, pattern of repeat motif, and chromosome location. These markers can be used for Distinctness, Uniformity and Stability(DUS) tests of variety identification and for marker assisted selection(MAS) in variety improvement and management. These STRs have also proved to be helpful in classification of Musa germplasm to distinguish individual accessions and in the development of a standardized procedure for genotyping. These markers can also be used in gene discovery and QTL mapping. The database represents a source of markers for developing and implementing new approaches for molecular breeding, which are required to enhance banana productivity. | Vasu Arora Neera Kapoor Samar Fatma Sarika Jaiswal Mir Asif Iquebal Anil Rai Dinesh Kumar | 2018 | The Crop Journal2018，6，6： | 0 |
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