نتایج جستجو برای: natural preservative
تعداد نتایج: 484653 فیلتر نتایج به سال:
In the present study the efficacy of arkas (water distillate) and essential oils of cinnamon and clove is evaluated as a preservative for kwathas. Arkas and essential oils of cinnamon and clove have good preservative property without altering the physico - chemical properties of kwatha.
In recent years, antimicrobial packaging has attracted much attention from the food industry because of the increase in consumer demand for minimally processed, preservative-free products. Antimicrobial packaging can be considered an emerging technology that could have a significant impact on shelf life extension and food safety. Many classes of antimicrobial compounds have been evaluated in fi...
Consumers have recently preferred food that is easy to make and of excellent quality, as well safe, natural, minimally processed, but has a longer shelf life. Food deteriorates over time result microbiological, chemical, or physical changes. Phytochemicals derived from medicinal plants long been recognized for their biological activity protect plants. These bioactivities are designed increase t...
AIM A crossover, randomised double blind study was undertaken in 30 healthy volunteers, in order to compare the tolerance of 2% carteolol with and without preservative in short term use. METHODS Complete ophthalmic examinations were performed before and 30, 60, and 180 minutes after instillation of one drop of the solution, and after 3 days of preservative treatment. After a 5 day washout, th...
Open sun drying of horticultural produce results in contamination due to microbial and fungal attacks could also be damaged by insects, pests, rodents. Solar through solar collectors is, therefore, an important technique used for the preservation foods extend shelf life produce, thereby reducing attack contamination. Therefore, experiment was carried out study response kinetics solar-dried toma...
In this study, the application of eucalyptus essential oil/vapour as beverages preservative is reported. The chemical composition of eucalyptus oil was determined by gas chromatography-mass spectrometry (GC-MS) and solid phase microextraction GC-MS (SPME/GC-MS) analyses. GC-MS revealed that the major constituents were 1,8-cineole (80.5%), limonene (6.5%), α-pinene (5%), and γ-terpinene (2.9%) w...
This work is a part of a study on the processing of fruit nectars enriched with Aloe vera gel. The aim of this study was to produce therapeutic and high nutritional mango nectar by supplementation of mango pulp with Aloe vera gel. Effects of different addition levels of Aloe vera gel (5, 10, 15, 20 and 25%) on the physical, microbial and chemical properties such as total soluble solids, total a...
Rumput roman extract is used as a natural food preservative. Its antimicrobial activity and constituents were investigated as part of an ongoing study to evaluate its quality and safety as a food additive. The constituents were analyzed by GC/MS, and 5 major constituents were isolated and identified as capillin, capillene, caryophyllene oxide, alpha-curcumene and methyleugenol using NMR analysi...
Plant-derived extracts (PDEs) are a source of biologically-active substances having antimicrobial properties. The aim of this study was to evaluate the potential of neem oil (NO) as a preservative of fresh retail meat. The antibacterial activity of NO against Carnobacterium maltaromaticum, Brochothrix thermosphacta, Escherichia coli, Pseudomonas fluorescens, Lactobacillus curvatus and L. sakei ...
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