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Enzyme-Mediated Stereoselective Synthesis

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ISBN: 9783039219360 9783039219377 Year: Pages: 116 DOI: 10.3390/books978-3-03921-937-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General) --- Inorganic Chemistry
Added to DOAB on : 2020-01-07 09:08:26
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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.

Human Milk and Lactation

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ISBN: 9783039289233 / 9783039289240 Year: Pages: 368 DOI: 10.3390/books978-3-03928-924-0 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Nutrition and Food Sciences
Added to DOAB on : 2020-06-09 16:38:57
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Human milk is uniquely tailored to meet infants’ specific nutritional requirements. However, it is more than just “milk”. This dynamic and bioactive fluid allows mother–infant signalling over lactation, guiding the infant in the developmental and physiological processes. It exerts protection and life-long biological effects, playing a crucial role in promoting healthy growth and optimal cognitive development. The latest scientific advances have provided insight into different components of human milk and their dynamic changes over time. However, the complexity of human milk composition and the synergistic mechanisms responsible for its beneficial health effects have not yet been unravelled. Filling this knowledge gap will shed light on the biology of the developing infant and will contribute to the optimization of infant feeding, particularly that of the most vulnerable infants. Greater understanding of human milk will also help in elucidating the best strategies for its storage and handling. The increasing knowledge on human milk’s bioactive compounds together with the rapidly-advancing technological achievements will greatly enhance their use as prophylactic or therapeutic agents. The current Special Issue aims to welcome original works and literature reviews further exploring the complexity of human milk composition, the mechanisms underlying the beneficial effects associated with breastfeeding, and the factors and determinants involved in lactation, including its promotion and support.

Keywords

human milk --- preterm --- term --- infants --- lipids --- fatty acids --- human milk fortification --- docosahexaenoic acid (DHA) --- mothers’ own milk --- donor human milk --- arachidonic acid (ARA) --- eicosapentaenoic acid (EPA) --- bioactive factors --- carotenoids --- dietary intake --- high-performance liquid chromatography (HPLC) --- human milk --- lactation --- maternal diet --- prospective study --- Human Milk --- Preterm infant --- Phospholipids --- Lipidomics --- Milk Fat Globule Membrane --- breastfeeding --- late preterm --- protective factors --- promotion of breastfeeding --- breastfeeding support --- mammary gland --- immune-active proteins --- proteases --- protease inhibitors --- digestive tract --- antenatal --- expressing --- pregnancy --- video instruction --- colostrum --- breastfeeding --- online --- clinical trial --- lactation --- infants --- breastfeeding --- lactating women --- human milk benefits --- colostrum --- milk therapy --- bioactive factors --- 2?-fucosyllactose (2?FL) --- 3?-sialyllactose (3?SL) --- disialyllacto-N-tetraose (DSLNT) --- human milk oligosaccharides (HMO) --- milk group --- secretor --- Lewis --- lactation --- preterm --- adipokines --- antioxidants --- breastfeeding --- cytokines --- growth factors --- human milk --- preterm --- term --- neonate --- infant --- macronutrients --- protein --- fat --- lactose --- nutrition --- passive immunization --- maternal immunoglobulins --- lactation --- prematurity --- flu vaccine --- human milk --- human milk --- omega-3 fatty acids --- docosahexaenoic acid --- eicosapentaenoic acid --- ?-linolenic acid --- dietary intake --- food frequency questionnaire --- vitamin D deficiency --- supplementation --- breastfeeding --- mothers --- infants --- human milk --- targeted metabolomics --- amino acids --- lipid metabolites --- LC-MS --- flow injection analysis --- human milk --- protein --- glycoprotein --- endogenous peptide --- breastfeeding --- hormones --- adipokines --- breast milk --- growth --- body composition --- term infant --- human milk --- term --- preterm --- calcium --- phosphorus --- magnesium --- zinc --- iron --- copper --- iodine --- selenium --- potassium --- sodium --- n-9 fatty acid --- nervonic acid --- human milk fat --- infant formula --- lactational stage --- donor human milk --- high pressure processing --- carotenoids --- antioxidant capacity --- lipids --- bile salt stimulated lipase --- preterm --- retinol --- ?-tocopherol --- inadequate intake --- nutritional status --- breast milk --- undernourishment --- dietary assessment --- multiple source method --- human milk --- celiac disease --- hormones --- fatty acids --- duration of lactation --- country --- carbohydrate --- fat --- breastfeeding difficulties --- early breastfeeding cessation --- term infants --- breastfeeding support --- human milk --- donor milk --- choline --- phosphocholine --- storage --- pasteurization --- milk banking --- pumping --- breastfeeding --- lactation --- n/a

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