Promising bioactive properties of quercetin for potential food applications and health benefits: A review

Naturally occurring phytochemicals with promising biological properties are quercetin and its derivatives. Quercetin has been thoroughly studied for its antidiabetic, antibacterial, anti-inflammatory, anti-Alzheimer's, anti-arthritic, antioxidant, cardiovascular, and wound-healing properties. Anticancer activity of quercetin against cancer cell lines has also recently been revealed. The majority of the Western diet contains quercetin and its derivatives, therefore consuming them as part of a meal or as a food supplement may be sufficient for people to take advantage of their preventive effects. Bioavailability-based drug-delivery systems of quercetin have been heavily studied. Fruits, seeds, vegetables, bracken fern, coffee, tea, and other plants all contain quercetin, as do natural colors. One naturally occurring antioxidant is quercetin, whose anticancer effects have been discussed in detail. It has several properties that could make it an effective anti-cancer agent. Numerous researches have shown that quercetin plays a substantial part in the suppression of cancer cells in the breast, colon, prostate, ovary, endometrial, and lung tumors. The current study includes a concise explanation of quercetin's action mechanism and potential health applications

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Not AvailableThe present work was conducted to microencapsulate the commercial (CE), and solvent (SE) extracted annatto using modified starch (MS) and gelatine (G) blend as wall material by spray drying. The conditions used were solid: liquid (S / L) ratio 1 to 10, extraction temperature 70 ° C, and extraction time interval (10 – 35 min) for the SE annatto extract. Among the different treatments, 20 min extraction time was highly significant in the recovery of 93.19 plus or minus 0.06 g per 100 g of annatto seeds of total pigment and 94.78 plus or minus 0.89% of bixin recovery. Both SE and CE annatto extracts have been used as a core material with wall materials (MS to G) in varied ratios of 100:0 to 60 to 40 to produce the microcapsules. The highest encapsulation efficiency of 86.18% and 86.37% were recorded for the SE and CE microcapsules prepared with the wall material (MS to G) ratio of 60 to 40. Encapsulated extract recorded higher stability against light, oxygen, and heat than the non-encapsulated annatto. In vitro release study of both microcapsules in three different pH conditions (1.2, 6.8, and 7.4) revealed an initial burst release of bixin pigment followed by a controlled release of bixin from microcapsules.Not Availabl

Nutritional Profile, Phytochemical Compounds, Biological Activities, and Utilisation of Onion Peel for Food Applications: A Review

The majority of the by products formed during onion processing remain unutilized, yet they are rich in bioactive compounds and phytochemicals. Onions are a very valuable vegetable. Onion chemical compounds are incredibly diverse, and they work through a variety of pharmacological mechanisms to prevent disease. Although the mechanism of the action of the chemicals found in onions has been studied, there is still room for further reformulating of nutrient supplements and pharmaceutical treatments thanks to a growing interest in sustainable resource utilisation and circular economy. This review focuses on the primary bioactive components found in onion peel and skin, particularly total phenolics, quercetin, total flavonoids, and their derivatives, as well as their therapeutic uses such as cardioprotective, anticancer, neuroprotective, antiobesity, antidiabetic, and antibacterial constituents. This review article noted that onion peel is a valuable agricultural byproduct that has a variety of biologically active compounds so it can be used as a health-regulating ingredient, particularly in the biomedical and pharmacological domains