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The use of polymeric materials from renewable resources dates back in history. Even though synthetic polymers dominated the market for years, there is now a need for the development of sustainable, safe, and environmentally benign plastics from renewable resources. Green polymers from renewable resources can be isolated from biomass, obtained through the chemical modification of natural polymers, or synthesized through a two-step process from biomass involving monomer synthesis and then polymerization. Finally, polymer synthesis can be achieved in plants through photosynthesis using carbon dioxide or in microorganisms (e.g. synthesis of poly(hydroxy-alkanoate)s). In this issue, the developments in sustainable polymers including PLA, PHB, and furan-based materials are presented together with those concerning bionanocomposites of lignocellulosic mater or starch, and blends of bioplastics. The use of biomass-based plasticizers, fillers, and additives for the improvement of polymers’ properties and the applications of biopolymers such as hyaluronic acid, carrageenans, chitosan, and polysaccharides in medicine and pharmaceutics are discussed.

Renewable monomers --- Sustainable materials --- Biobased polymers --- Bioplastics --- Biodegradable polymers --- Renewable resources

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The use of biocatalysts, including enzymes and metabolically engineered cells, has attracted a great deal of attention in the chemical and bio-industry, because biocatalytic reactions can be conducted under environmentally-benign conditions and in more sustainable ways. The catalytic efficiency and chemo-, regio-, and stereo-selectivity of enzymes can be enhanced and modulated using protein engineering. Metabolic engineering seeks to enhance cellular biosynthetic productivity of target metabolites via controlling and redesigning metabolic pathways using multi-omics analysis, genome-scale modeling, metabolic flux control, and reconstruction of novel pathways. The aim of this book is to cover the recent advances in biocatalysis and metabolic engineering for biomanufacturing of biofuels, chemicals, biomaterials, and pharmaceuticals. Reviews and original research articles on the development of new strategies to improve the catalytic efficiency of enzymes, biosynthetic capability of cell factories, and their applications in production of various bioproducts and chemicals are included.

n/a --- fluorescein diacetate --- Methylosinus sporium strain 5 --- soluble methane monooxygenase --- tunable expression system --- FTIR spectroscopy --- mevalonate kinase 1 --- poly(ethylene glycol) --- tetraethylene glycol --- review --- mevalonate (MVA) --- biofilm --- 5-hydroxymethylfurfural --- polymer functionalization --- microbial production --- microbial cell factory --- bio-hydrogen --- redox enzymes --- specific recognition --- fed-batch fermentation --- monoterpene --- Vitreoscilla --- Pvgb --- bioreactor --- 3-hydroxypropionic acid --- cascade reactions --- synthetic biology --- aerobic methane bioconversion --- starch hydrolysis --- CYP153A --- MEP pathway --- cross-linked enzyme aggregate --- interfacial activation --- expression vectors --- Combi-CLEAs --- polyethyleneimine --- bovine serum albumin --- polyurethane foam --- 12-hydroxydodecanoic acid --- MEV pathway --- amyloglucosidase --- total enzymatic activity --- Nylon 12 --- biocatalytic reaction --- Myceliophthora --- whole-cell biotransformation --- magnetic nanoparticles --- lipase immobilization --- Methanosarcina mazei --- biocatalysis --- acetate --- vgb --- C–H activation --- artificial self-sufficient P450 --- whole cell --- bioplastics --- Corynebacterium glutamicum --- chemicals addition --- enzyme modulation --- Eversa --- enzyme stabilization --- biocatalysts --- prokaryotic microbial factory --- synthetic metabolic pathways --- mannose --- immobilization --- (?)-?-bisabolol --- hydrogenase --- O2 activation --- string film reactor --- fatty acid synthesis --- ?-aminododecanoic acid --- transesterification --- mass transfer performance --- dodecanoic acid --- metabolic engineering --- glyoxal oxidase --- small molecules --- Candida antarctica Lipase B --- C-H activation