Phenolic compounds recovered from ora-pro-nobis leaves by microwave assisted extraction

Resveratrol is a stilbene class of phenolic phytochemical that has a wide range of utilization in several industries, including pharmaceutical, food and cosmetic industries. It is available in several plants, including grapes, berries, and peanuts. Major focus of research regarding resveratrol has been its therapeutic potential against major diseases, including cardiovascular, inflammatory, cancer, microbial and age-related diseases. However, its extraction methods have not been of much discussion. In this review, nonconventional methods, including supercritical fluid extraction, subcritical water extraction, microwave- assisted extraction, ultrasound assisted extraction, and high hydrostatic pressure extraction have been discussed in contrast to widely implemented conventional extraction methods. Nonconventional methods are considerably advanced over conventional methods. In this review, the efficiency of various nonconventional methods via optimization of their extraction parameters, such as the effects of modifiers, solvents, pressure, temperature, and extraction time, have been evaluated. Improvised extraction methods may result in cost-effective isolation of resveratrol.

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A Critical Appraisal of the Most Recent Investigations on Ora-Pro-Nobis (Pereskia sp.): Economical, Botanical, Phytochemical, Nutritional, and Ethnopharmacological Aspects

Teixeira,

Oliveira,

Backes

et al. 2023

Plants

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Pereskia aculeata Miller and Pereskia grandfolia Haw, known as ‘ora-pro-nobis’, are unconventional vegetables belonging to the Cactaceae family, native to the Americas and common in the northeast and southeast regions of Brazil. This review attempts to present a balanced account of both the methods used for obtaining extracts from the diverse parts of the plants and the results that were obtained in terms of their applicability to foods and other products with biological activities. Attention will also be devoted to the properties of their bioactives and their applications to real food products. Methods for obtaining extracts from the diverse parts of the plants will be analyzed, as well as the chemical nature of the bioactives that were hitherto identified. Next, the applicability of ora-pro-nobis in either its integral form or in the form of extracts or other products (mucilages) to the production of food and dietary supplements will be analyzed. The species have been extensively investigated during the last few decades. But, the determination of chemical structures is frequently incomplete and there is a need for new studies on texture determination and color evaluation. Further studies exploring the fruit and flowers of P. aculeata are also required.

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Phenolic compounds recovered from ora-pro-nobis leaves by microwave assisted extraction

Cited by 3 publications

References 32 publications

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A rapid recovery of phytochemicals from carrot seeds: an analytical approach

Evaluation of Nonconventional Extraction Methods of Resveratrol from Various Plant Sources - A Brief Review

A Critical Appraisal of the Most Recent Investigations on Ora-Pro-Nobis (Pereskia sp.): Economical, Botanical, Phytochemical, Nutritional, and Ethnopharmacological Aspects

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