Influence of ultrasound‐assisted extraction techniques on the valorization of agro‐based industrial organic waste – A review
Malini Buvaneshwaran, R. Mahendran, Venkatachalapathy Natarajan
Abstract
Abstract One of the world's promising sectors is food processing. A huge amount of waste is generated during the handling and value addition of agricultural commodities. So researches focus on extracting valuable compounds from organic waste to increase the economical value. On the other hand, the amount of debris is also reduced, which helps sustainable development and carbon footprints. Extractable compounds can be used as an alternative to synthetic compounds in food applications. For this, Ultrasound‐Assisted Extraction (UAE) captures the researcher's attention because of its advantages like less solvent utilization, low‐temperature operation, and eco‐friendly end products. This review recapitulates the mechanism and the factors affecting the extraction and possibility of compounds extracted from waste. The green separation ultrasound‐aided technique has been proven to provide higher extractable compounds. Usage of water as a solvent further reduces environmental and economic problems. By considering all of these advantages, this article discusses the mechanism, elements affecting the extraction, and the effect of combination treatment on properties and the outcome of extraction. It presents the details about the application of the UAE in the valorization of waste compounds. Practical application Food processing is one of the most promising sectors globally; the agricultural organic waste created by this sector plays a significant part in waste generation. Extracting valuable active compounds from this waste can improve the utilization of natural compounds in other foods, help obtain extra income, and help reuse industrial waste. Ultrasound‐assisted extraction is a suitable technology for extracting valuable compounds from organic waste. Optimum process conditions must be identified, which vary based on process conditions and extractable material nature to obtain the maximum extraction.