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Native to Argentina, Brazil and Paraguay, Stevia rebaudiana is a plant used as a sweetener and member of the Asteraceae family. In addition to having the potential to be a sweetener, stevia is a source of several nutrients that have a positive impact on human nutrition. The leaves of stevia include the chemical, rebaudioside, steviolbioside, and isosteviol and sweeter than sucrose with 0 calories. These steviol glycosides are valued commercially worldwide for their ability to replace sugar in food, drink, and nutraceuticals. They are also thought to have a sweet flavour. An overview of various extraction techniques, phytochemistry and commercial stevia applications is given in this article. a variety of goods, including drinks, bread goods, dairy products, and confections. Numerous researches demonstrate the potential health advantages of stevia against a range of illnesses, including the antimicrobial, anti-obesity, cancer prevention, anti-oxidant, anti-hypertensive and anti-diabetic qualities investigated in this work. According to clinical research, steviol glycosides--an important stevia phytochemical--are safe for ingestion by humans and do not cause either acute or serious toxic effects. This work potentially give an alternative perspective of stevia for the management of human ailments and contribute in creative stevia-based goods. [ABSTRACT FROM AUTHOR]

[Display omitted] • Food demand is high leading to increased agro residue production. • CO 2 emissions is increasing due to stubble and fossil fuel burning. • Cellulose degrading microbial consortia can be better for bioethanol production. • Bioethanol production from agro waste can be major alternative green energy source. The total annual emission due to fossil fuel and agro waste stubble burning is 36.73 teragrams CO 2 equivalent. Many international organizations focus on alternative energy sources such as biofuel production. In the recent past, biofuel production has gathered pace and increased dramatically, with the USA and Brazil topping the list for bioethanol production. Recent advancements in pre-treatment technologies include the use of ionic liquids and deep eutectic solvents. In this review, many recent advancements on pre-treatment technology of biomass have been discussed. This review also emphasizes on the recent advancements made in the field of saccharification technology. Bioethanol production from cellulosic biomass is facilitated by a complex set of enzymes mainly endoglucanase, exoglucanase and ß-glucosidase apart from other auxillary enzymes and accessory protiens. In this review, multiple approaches have been explored which enhance biofuel production such as developing cellulose degrading microbial consortia and genetically modified microbes. This study also highlights the importance of bioethanol production with reference to climate change concerns, advances in technologies and future perspectives. [ABSTRACT FROM AUTHOR]