A collective report on the extraction and isolation of β-glucan from grain sources, namely, oat, barley, and wheat is presented. An analysis on the effect of medium, pH, and temperature on the purity and yield of the β-glucan derived under acidic/alkaline/aqueous/enzymatic conditions is also made. Water extraction and alkali extraction processes are preferred as the yield and recovery of extracted β-glucan were good. Cost-effective development of the process for deriving high molecular weight β-glucan is the current requirement for its wide applications in food and pharmaceutical industries.

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Perovskite has attracted the attention of researchers owing to its intriguing physicochemical properties and wide applications. Recently, Fe-based Perovskite as well as its nanoforms is an extensively studied material due to its photocatalytic activity, multiferroic properties, and chemical stability. Fe-based Perovskite exhibits a range of characteristics that become helpful for different applications such as catalysis, electrochemical sensors, and solar cells. This review summarizes the synthesis, properties, and environmental applications of Fe-based Perovskite. This review highlights and provides an overview of the transition metal substituent in Fe-based Perovskite and its properties and how it influences its application in wastewater treatment and catalysis. This article furnishes an overview on synthesis, properties, and environmental application of Fe-based Perovskite.