Formulation, characterization, and applications of organic Pickering emulsions: A comprehensive review

Pickering emulsions are suspensions of droplets of one liquid in another immiscible liquid which are stabilized by solid particles adsorbed at the droplet-liquid interface. The stabilization of emulsion is done by the solid particles that physically prevent droplets from coalescing. It is possible to alter the emulsifying capabilities of starch by expanding its surface area or changing its charge. Pickering emulsions are stabilized by components such as starch, cellulose, or chitosan. Starch based Pickering emulsions are highly biodegradable and have low toxicity. The inclusion of starch assists in the development of more stable and long-lasting emulsions, extending the shelf life of the developed products. Starch stabilized Pickering emulsions can be utilized to encapsulate pharmaceuticals or nutrients for systemic or targeted administration. The potential for controlled release of Pickering emulsions is highlighted in this review when behavior varies in response to environmental factors like temperature, pH, or light. The investigation emphasized Pickering emulsions with biocompatible and biodegradable particles and focused on numerous environmentally friendly and sustainable techniques for making Pickering emulsions, such as using waste or renewable resource-derived particles. The review focuses on the development, characterization, and applications of Pickering emulsions based on biological macromolecules of starch

Carbon dots applications for development of sustainable technologies for food safety: A comprehensive review

This review describes the application of carbon dots in the development of sustainable technologies for food safety and quality. Carbon dots (CDs) are surface-functionalized and minuscule in size, with controlled fluorescence, high environmental sensitivity, and a range of remarkable photochemical properties. Green CDs are now the subject of extensive study due to their potential applications in a wide range of fields, such as nano sensing, bio imaging, and photo catalysis. Synthesizing CDs involves the top-down strategy, which includes splitting the bigger carbon molecule into nanoscale particles, and the bottom-up methodology, which involves producing CDs from small carbon units. The problems in the food supply chain are very prominent, from farm to fork that include chemical, microbiological and human hygiene. CDs have recently garnered interest because of the straightforward synthesis method, high biocompatibility, and potential for a variety of innovative applications. CDs were prepared from any carbon source, such as food, food waste, plants, chemicals, and graphene. CDs may be extracted naturally from some foods, such as honey, caramels, and sugar beet molasses. The rapid detection of dietary nutrients and toxins has sparked considerable attention, and nanomaterials-based fluorescence sensing has great promise for establishing exceptionally selective and sensitive identification procedures for food safety testing. Carbon dots have a promising future in fluorescence detection of contaminants due to their significant properties. Carbon dot sensors have capacity in the food sensing sector, since food samples include a variety of components that might create interferences, more innovative approaches to bind with CDs are necessary to develop specific sensing probes

Effect of roasting and frying treatments on aflatoxins and capsaicinoids content and nutritional profile of green chilies (Capsicum annum L.)

Abstract This study was conducted to assess the effect of two thermal treatments, viz. roasting and pan frying (deep frying), on nutritional profile, aflatoxin, and capsaicin content in green chilies. Green chilies were subjected to roasting and frying to reduce the aflatoxin contamination, besides retaining their pungency and nutritional profile. Reversed‐phase HPLC was employed to determine the levels of aflatoxins B1, B2, G1, and G2 in thermally treated and control samples. The proximate compositions of roasted and fried chili samples were significantly (p ≤ .05) different from raw chili (control), except ash content. Vitamin A levels decreased significantly (p ≤ .05) during roasting and were undetected in fried chili samples. Likewise, vitamin C was undetected in both roasted and fried chili samples. Significantly decreasing (p ≤ .05) trends were noticed in capsaicinoids viz. capsaicin and dihydrocapsaicin contents including Scoville Heat Units (SHU) during roasting and frying. However, retention of capsaicinoids was higher in roasted chilies (730.00 ± 4.90 mg/kg) than fried samples (502.56 ± 5.10 mg/kg). The levels of all the four major aflatoxins (AFs)‐ AFB1, AFB2, AFG1, and AFG2 recorded in control were much higher than the limits prescribed by the European Union for spices. Both thermal treatments (roasting and frying) employed proved to be effective in reducing aflatoxins like AFB2, AFG1, and AFG2 in chilies to below the prescribed limits, while as the level of AFB1 was reduced below the limits by only the frying method. This study therefore indicated the substantial impact of frying on aflatoxins

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