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Book
Enzyme-Mediated Stereoselective Synthesis
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ISBN: 3039219375 3039219367 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This book is a collection of studies focused on the exploitation of enzyme stereoselectivity for the synthesis of relevant chemicals, such as innovative materials, chiral building blocks, natural products, and flavor and fragrance compounds. Different catalytic approaches are reported. The first study describes a resolution-based process for the stereoselective synthesis of the enantiomeric forms of the flavor compound linaloyl oxide, whereas other enantiomeric enriched aroma compounds were obtained through a novel microbial approach based on solid-state fermentation. Two relevant works exploit the potential of the biocatalyzed reduction reactions. The first of these contributions describes the enantioselective synthesis of ?-nitroalcohols by enzyme-mediated reduction of ?-nitroketones, whereas a second contribution reports the preparation of chiral 1,4-diaryl-1,4-diols through ADH-catalyzed bioreduction of the corresponding diketones. Concerning enantioenriched alcohol derivatives, natural hydroxy fatty acids are prepared by means of the biocatalytic hydration reaction of natural fatty acids using the probiotic bacterium Lactobacillus rhamnosus as a whole-cell biocatalyst. Further studies describe the use of modified pullulan polysaccharide for lipase immobilization and the recent advances in synthetic applications of ?-transaminases for the production of chiral amines.


Book
Biocatalysis and Pharmaceuticals: A Smart Tool for Sustainable Development
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ISBN: 3039217097 3039217089 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Biocatalysis, that is, the use of biological catalysts (enzymes, cells, etc.) for the preparation of highly valuable compounds is undergoing a great development, being considered an extremely sustainable approach to undertaking environmental demands. In this scenario, this book illustrates the versatility of applied biocatalysis for the preparation of drugs and other bioactive compounds through the presentation of different research articles and reviews, in which several authors describe the most recent developments in this appealing scientific area. By reading the excellent contributions gathered in this book, it is possible to have an updated idea about new advances and possibilities for a new exciting future.


Book
Biocatalysis: Chemical Biosynthesis
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Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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This book has been written with the purpose of providing a vision of a topic which is on the edge of biology and chemistry. As well, we want to provide an updated vision of the potentials and limitations of biocatalysis, especially with respect to applications in processes of organic synthesis, fine chemicals, and medicine. This book pretends to illustrate the potential of an excellent overview of recent progress on the assessment of granted patents as a useful tool in asymmetric synthesis. Some distinguished researchers have contributed to this endeavor with their knowledge, their commitment and their encouragement


Book
Prevention and Treatment of Sarcopenia
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Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Sarcopenia represents the decline in skeletal muscle mass and function with age, characterized by the muscle fiber's quality, strength, muscle endurance, and metabolic ability decreasing, as well as the fat and connective tissue growing.Reduction of muscle strength with aging leads to loss of functional capacity, causing disability, mortality, and other adverse health outcomes. Because of the increase of the proportion of elderly in the population, sarcopenia-related morbidity will become an increasing area of health care resource utilization.Diagnostic screening consists of individuation of body composition, assessed by DEXA, anthropometry, bioelectrical impedance, MRI, or CT scan. Management is possible with resistance training exercise and vibration therapy, nutritional supplements, and pharmacological treatment.The book includes articles from different nationalities, treating the experimental and medical applications of sarcopenia. The consequences of sarcopenia in frailty are treated in relation to other associated pathologies or lesions, as femoral neck fractures and hepatocellular carcinoma.

Keywords

muscle-mass --- sleep efficiency --- sleep duration --- insomnia --- sarcopenia --- quality of life --- osteoporosis --- postmenopausal women --- sedentary behaviour --- aged --- exercise --- motivation --- hepatoma --- myokine --- decorin --- walking distance --- survival --- muscle strength --- resistance training --- randomized controlled trial --- nutritional status --- nutritional screening tools --- hospitalized older patients --- resistance exercise training --- muscle regulatory factors --- deconditioning --- skeletal muscle --- elderly --- hypertrophy --- multimorbidity --- polypathological patients --- frailty --- oxidative stress --- telomere length --- apoptosis --- spirometry --- urea --- fatigue --- respiratory system --- skeletal muscles --- lipids --- transaminases --- falls --- resistance exercise --- vibration --- electrical stimulation --- hip fracture --- diagnosis --- treatment --- prevention --- dual-energy X-ray absorptiometry --- bisphosphonate --- β-hydroxy-β-methylbutyrate --- exercise intervention --- fall risk --- balance --- anxiety --- depression --- sleep quality --- type 2 diabetes --- physical activity --- muscle mass --- protein intake --- accelerometer --- aerobic exercise training --- mitochondria --- endurance --- fractures --- ageing fractures --- complications --- recovery --- rehabilitation --- nutritional supplements --- physical therapy --- cognition --- brain-body cross-talk --- older persons --- prevalence --- physical functional performance --- epidemiologic studies --- aging --- panoramic ultrasound --- echogenicity --- specific force --- isokinetic dynamometry --- muscle quality --- strength --- older adults --- diagnostic criteria --- clinical

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