Vivek K. Bajpai

Bio: Vivek K. Bajpai is an academic researcher from Dongguk University. The author has contributed to research in topics: Essential oil & Materials science. The author has an hindex of 43, co-authored 264 publications receiving 7126 citations. Previous affiliations of Vivek K. Bajpai include University College of Engineering & Daegu University.

Application of Nanotechnology in Food Science: Perception and Overview.

Abstract: Recent innovations in nanotechnology have transformed a number of scientific and industrial areas including the food industry. Applications of nanotechnology have emerged with increasing need of nanoparticle uses in various fields of food science and food microbiology, including food processing, food packaging, functional food development, food safety, detection of foodborne pathogens and self-life extension of food and/or food products. This review summarizes the potential of nanoparticles for their uses in the food industry in order to provide consumers a safe and contamination free food and to ensure the consumer acceptability of the food with enhanced functional properties. Aspects of application of nanotechnology in relation to increasing in food nutrition and organoleptic properties of foods have also been discussed briefly along with a few insights on safety issues and regulatory concerns on nano-processed food products.

Essential Oils: Sources of Antimicrobials and Food Preservatives

Abstract: Aromatic and medicinal plants produce essential oils in the form of secondary metabolites. These essential oils are having a diverse way of application in the food system, perfumery, and cosmetics. The use of essential oil as antimicrobial and food preservative agents is of great concern because of several side effects of synthetics. These oils have a potential to be used as food preservative including cereals, grains, pulses fruits, and vegetables. In the current review, we have briefly reviewed the literature and summarizing the uses of essential oils with special emphases on the antibacterial, bactericidal, antifungal, fungicidal and food preservative properties. These essential oils have pronounced antimicrobial and food preservative properties because essential oils consist of various active constituents (terpenes, terpenoids, carotenoids, coumerines, curcumines) with great significance for food industries. Thus, these properties of essentials oils offer a possibility to substitutive natural, safe, eco-friendly, cost-effective, renewable and easily biodegradable antimicrobials for food commodities preservation in near future.

Harrison's Principles of Internal Medicine

Abstract: The 11th edition of Harrison's Principles of Internal Medicine welcomes Anthony Fauci to its editorial staff, in addition to more than 85 new contributors. While the organization of the book is similar to previous editions, major emphasis has been placed on disorders that affect multiple organ systems. Important advances in genetics, immunology, and oncology are emphasized. Many chapters of the book have been rewritten and describe major advances in internal medicine. Subjects that received only a paragraph or two of attention in previous editions are now covered in entire chapters. Among the chapters that have been extensively revised are the chapters on infections in the compromised host, on skin rashes in infections, on many of the viral infections, including cytomegalovirus and Epstein-Barr virus, on sexually transmitted diseases, on diabetes mellitus, on disorders of bone and mineral metabolism, and on lymphadenopathy and splenomegaly. The major revisions in these chapters and many

Mammalian caspases: structure ,a ctivation ,s ubstrates, and functions during apoptosis

Abstract: ■ Abstract Apoptosis is a genetically programmed, morphologically distinct form of cell death that can be triggered by a variety of physiological and pathological stimuli. Studies performed over the past 10 years have demonstrated that proteases play critical roles in initiation and execution of this process. The caspases, a family of cysteine-dependent aspartate-directed proteases, are prominent among the death proteases. Caspases are synthesized as relatively inactive zymogens that become activated by scaffold-mediated transactivation or by cleavage via upstream proteases in an intracellular cascade. Regulation of caspase activation and activity occurs at several different levels: ( a) Zymogen gene transcription is regulated; ( b) antiapoptotic members of the Bcl-2 family and other cellular polypeptides block proximity-induced activation of certain procaspases; and ( c) certain cellular inhibitor of apoptosis proteins (cIAPs) can bind to and inhibit active caspases. Once activated, caspases cleave a variety of intracellular polypeptides, including major structural elements of the cytoplasm and nucleus, components of the DNA repair machinery, and a number of protein kinases. Collectively, these scissions disrupt survival pathways and disassemble important architectural components of the cell, contributing to the stereotypic morphological and biochemical changes that characterize apoptotic cell death.