A review of exploring the synthesis, properties, and diverse applications of poly lactic acid with a focus on food packaging application.

Polylactic acid (PLA) is an aliphatic polyester, which is primarily synthesized from renewable resources through the polycondensation or ring-opening polymerization of lactic acid (LA)/lactide. LA can be conveniently produced via the fermentation of sugars obtained from renewable sources such as corn and sugar cane. Due to its biodegradable and biocompatible nature, PLA exhibits a vast range of applications.

Effects of different cooking methods on the proximate composition and physical properties of Brown shrimp ( during cooking and freezing cycle.

Present study aimed to evaluate the changes in proximate composition and physical attributes in brown shrimp () exposed to different methods of cooking followed by freezing. For this, three different grades (100/200, 200/300, and 300/500 numbers per kg) of brown shrimp were cooked at 90 °C till the core temperature of the product reaches 85 °C using hot water, steam, and microwave (400 W) techniques. The changes in yield, cooking loss, proximate composition, textural, and colour profile were assessed for cooked shrimps.

Self-supervised clustering of mass spectrometry imaging data using contrastive learning.

Mass spectrometry imaging (MSI) is widely used for the label-free molecular mapping of biological samples. The identification of co-localized molecules in MSI data is crucial to the understanding of biochemical pathways. One of key challenges in molecular colocalization is that complex MSI data are too large for manual annotation but too small for training deep neural networks.

Source-dependent compositional changes in coconut flavoured liquid smoke and its application in traditional Indian smoked fishery products.

Smoking is an age-old food preservation method. Intense smoking results in deposition of carcinogenic polycyclic aromatic hydrocarbons (PAH) in food. Replacing traditional smoking practices with application of liquid smoke or smoke flavouring is proven to reduce the PAH content without adversely affecting flavour of the products.

Polylactic acid/chitosan films for packaging of Indian white prawn (Fenneropenaeus indicus).

Composite films were developed by embedding nanochitosan (0.5%, 1% and 2%) in a polylactic acid (PLA) matrix using polyethylene glycol as a cross linking agent and polyvinyl alcohol as plasticizer. The mixture was casted into films via solvent casting.

Combined effects of vacuum packaging and mint extract treatment on the biochemical, sensory and microbial changes of chill stored Indian mackerel.

The present study was aimed to investigate the combined effects of vacuum packaging and mint extract treatment on the quality changes of gutted Indian mackerel () during storage at 0-2 °C for 22 days. Biochemical, total viable count and sensory quality of chill stored mackerel were analysed at periodic intervals. Mint extract treated [dipping in 0.

Effect of chitosan based active packaging film on the keeping quality of chilled stored barracuda fish.

In the present study, active antimicrobial (AM) packaging films were prepared from chitosan (CH) incorporated with ginger (Zingiber officinale) essential oil at different concentrations (0.1, 0.2 and 0.

Efficacy of mint (Mentha arvensis) leaf and citrus (Citrus aurantium) peel extracts as natural preservatives for shelf life extension of chill stored Indian mackerel.

Efficacy of mint (Mentha arvensis) leaf and citrus (Citrus aurantium) peel extracts in retarding the quality changes in Indian mackerel during chilled storage was investigated. Mint leaf extract showed higher quantity of phenolics and superior in-vitro antioxidant activities than citrus peel extract. Gutted mackerel were given a dip treatment in mint extract (0.

Development and characterization of an LDPE/chitosan composite antimicrobial film for chilled fish storage.

An antimicrobial packaging material was developed by uniformly embedding 1, 3 and 5% chitosan (w/w) in low density polyethylene matrix using maleic anhydride grafted LDPE as a compatible agent. The materials were mixed by compounding and blown into monolayer films via blown film extrusion. The developed films showed good barrier properties against oxygen.

Packaging performance of organic acid incorporated chitosan films on dried anchovy (Stolephorus indicus).

Antimicrobial chitosan films were prepared with acetic acid and propionic acid with glycerol as plasticizer and its efficiency was compared with polyester-polyethylene laminate (PEST/LDPE). The tensile strength of acetic acid/chitosan (ACS) films were higher than propionic acid/chitosan (PCS) films. The elongation percentage (6.

Effect of high pressure treatment on microbiological quality of Indian white prawn (Fenneropenaeus indicus) during chilled storage.

High pressure treatment of 250 MPa for 6 min at 25 °C was applied to headless Indian white prawn (Fenneropenaeus indicus) to evaluate changes in microbiological characteristics of the species during chilled storage. Changes in load of mesophilic bacteria, psychrotrophic bacteria, proteolytic bacteria, Enterobacteriaceae, Pseudomonas spp., H2S producing bacteria, lactic acid bacteria, Brochothrix thermosphacta and yeast & mold were estimated in pressurized and un-pressurized samples during chilled storage.

Isolation of endophytic bacteria producing the anti-cancer alkaloid camptothecine from Miquelia dentata Bedd. (Icacinaceae).

Camptothecine (CPT), a quinoline alkaloid, is a potent inhibitor of eukaryotic topoisomerase I. Because of this activity, several semi-synthetic derivatives of CPT are in clinical use against ovarian and small lung cancers. Together with its derivatives, CPT is the third largest anti-cancer drug in the world market.

Flies, fish and food.

Dried fish are an important part of the traditional diet in many developing countries. But, during sun drying, the fish can become infested by maggots, leading to comprehensive destruction of the crop. Understanding the life cycles and seasonal abundance of the flies and their larvae is an essential step in the development of sustainable management programmes to reduce losses.