Clean label extraction of bioactive compounds from food waste through microwave-assisted extraction technique-A review

Clean label and green extraction have attained popularity due to elimination of solvent use and reduction in energy consumption. In this regard, microwave assisted extraction have emerged as a novel process for extraction of bioactive compounds. This process observed to consume less time and energy but have higher extraction efficiency. Additionally, the functionality of bioactive compounds has not degraded in this process. Therefore, this article explores the potential of microwave-based extraction as a green and ecofriendly technique. Moreover, it has been coupled with conventional technique (e.g. steam distillation, steam diffusion, hydrodistillation, air hydrodistillation, and hydro-diffusion and gravity) to ease the process and increase the efficiency. Available data highlights the importance of various hybrid techniques (microwave + conventional ones) for the extraction of bioactive compounds from fruit & vegetable waste.