Application of tannic acid and Fe crosslinking-enhanced chitosan films for wax apple (Syzygium samarangense) preservation.

This study examines the effects of edible chitosan coatings reinforced with tannic acid (TA) and ferric iron (Fe) double crosslinking on the quality of wax apples stored at room temperature. The effects of chitosan (CS) and CS/TA/Fe coatings on wax apple weight loss, decay index, respiration rate, titratable acidity, total phenolics, and other quality parameters were investigated. The weight loss and decay index of wax apples increased over time, with the CS coating delaying both compared to untreated fruits.

Phylogenetic Insights into the Evolutionary History of the Gene Family in Metazoa.

: The gene family encodes secreted glycoproteins that are rich in cysteine, which generally serve as activators of the Wnt signaling pathway in animals. Four types of this family have been identified in a few model species. However, the evolution of the family remains unclear.

A Comprehensive Evolutionary Analysis of the Dihydroflavonol 4-Reductase (DFR) Gene Family in Plants: Insights from 237 Species.

Background: Dihydroflavonol 4-reductase (DFR) is a key enzyme in the flavonoid biosynthetic pathway that regulates anthocyanin and proanthocyanidin accumulation in plants. Although genes have been studied in various species, their origin of the DFR gene family, its distribution across the plant kingdom, and the reasons behind the emergence of different DFR subtypes Methods: This study performed a whole-genome analysis of genes in 237 plant species, including algae, mosses, ferns, gymnosperms, and angiosperms, integrating phylogeny, conserved motifs, duplication mechanisms, positive selection, and expression pattern analyses.

Results: These results indicate that the gene family originated from the common ancestor of extant ferns and seed plants, and the emergence of asparagine (Asn)-type and aspartic (Asp)-type DFRs is associated with gymnosperms.

Evolutionary landscape of plant chalcone isomerase-fold gene families.

Flavonoids are crucial for plant survival and adaptive evolution, and chalcone isomerase (CHI) genes serve as key rate-limiting gene in the flavonoid biosynthesis pathway. It is important for plant adaptive evolution to comprehensively study the evolution and diversity of the CHI gene families. However, the CHI gene families in many plant lineages remain elusive.

Preparation and evaluation of ozone micro-nano bubbles ice for Litchi precooling.

Ozone (O) is an effective agent for post-harvest fruit preservation against diverse microorganisms. In this study, a cost-effective ozone micro-nano bubbles ice (O-MNBI) was prepared, characterized, and subsequently used to precool litchi. The optimal protocols for O-MNBI production were as follows: water (2 °C, pH = 7) was pumped into a micro-nano O bubble generator for 10 min aeration treatment.

Development and Assessment of a Color-Variable Chlorine Dioxide Slow-Releasing Card for Litchi Preservation.

Chlorine dioxide (ClO) gas has attracted considerable attention due to its safety and efficiency. In this study, we successfully developed a color-variable ClO slow-releasing card for postharvest litchi. The optimal ClO slow-releasing card was prepared as follows: Card A was soaked in 2.

Development of a Dual-Readout Multicolor Immunoassay for the Rapid Analysis of Isocarbophos in Vegetable and Fruit Samples.

Multicolor immunoassay is a powerful tool for rapid analysis without the use of bulky instruments owing to various color conversions, which is suitable for on-site visual analysis for pesticides. Herein, this study developed a multicolor immunoassay for the rapid detection of isocarbophos. After competitive immunoassay, the secondary antibody (GAM-ALP) catalyzed ascorbyl-2-phosphate (AAP) into ascorbic acid (AA).

Antibacterial and antioxidant plant-derived aldehydes: A new role as cross-linking agents in biopolymer-based food packaging films.

In recent years, biopolymer-based food packaging films have emerged as promising alternatives to petroleum-based plastic food packaging films. Various additives have been explored to enhance their properties, and one such group of additives is natural plant aldehydes. These aldehydes are commonly employed to improve the antibacterial and antioxidant properties of biopolymer-based food packaging films.

A review of starch/polyvinyl alcohol (PVA) blend film: A potential replacement for traditional plastic-based food packaging film.

In recent years, the development of environmentally friendly packaging materials using biodegradable polymers has emerged as a key challenge for scientists and consumers in response to resource depletion and environmental issues caused by plastic packaging materials. Starch and polyvinyl alcohol (PVA) are being recognized as excellent candidates for producing biodegradable food packaging films. Polymer blending has emerged as a practical approach to overcome the limitations of biopolymer films by developing films with unique properties and enhancing overall performance.

Microbial contribution to 14 biogenic amines accumulation in refrigerated raw and deep-fried hairtails (Trichiurus lepturus).

Biogenic amines (BAs) produced by microbial decarboxylation of amino acids are crucial toxic nitrogenous compounds in fish. An optimized ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method with simple pretreatment was established to detect 14 BAs in both raw (control check, CK) and deep-fried (DF) hairtails. This method exhibited a good linear relationship with average recoveries of 73.

High-throughput detection and dietary exposure risk assessment of 44 mycotoxins in Mango, Litchi, Longan, and their products in South China.

Mycotoxins exposure from food can trigger serious health hazards. This study aimed to establish an ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method for the simultaneous detection of 44 mycotoxins in fruits and their products, followed by dietary exposure risk assessment. The optimized UPLC-MS/MS method exhibited a good linear relationship with correlation coefficients ≥ 0.

Metabolic Profiling and Potential Taste Biomarkers of Two Rambutans during Maturation.

The metabolite-caused taste variation during rambutan maturation is unknown due to a lack of systematic investigation of all components. In this study, three growing stages, including unripe (S1), half-ripe (S2), and full-ripe (S3) BY2 and BY7 rambutans were compared and profiled by UPLC-MS/MS-based widely targeted metabolomics analysis. We demonstrated that the sugar-acid ratios of two rambutans were greatly improved between the S2 and S3 stages.

Detection and Degradation Characterization of 16 Quinolones in Soybean Sprouts by Ultra-High Performance Liquid Chromatography-Tandem Mass Spectrometry.

Recently, there have been increasing safety concerns about the illegal abuse of quinolone in soybean sprouts. This study aimed to establish an ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method for the simultaneous detection of 16 quinolones (QNs) in soybean sprouts, and then reveal their degradation characteristics. The samples were extracted with acetonitrile (with 1% formic acid), purified by a C18 adsorbent, and separated by an ACQUITY UPLC BEH C18 (1.