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Showing papers in "Process Biochemistry in 2013"


Journal ArticleDOI
TL;DR: Ammonia inhibition in anaerobic digestion systems and the recovery efforts after inhibition are discussed and the impacts of ammonia inhibition on the microbial population available in an aerobic digesters, namely bacteria and Archaea are evaluated in detail.

991 citations


Journal ArticleDOI
TL;DR: In this article, the authors highlight on the treatment approaches and valorization options for dealing with olive mill waste residues, predominantly those allowing for the recovery of valuable natural components such as phenolic compounds, dietary fibers, animal feed, biofuel, biogaz, enzymes, polymers and other.

470 citations


Journal ArticleDOI
TL;DR: This review summarizes the current technology status and challenges, economics, novel strategies for production of bacterial pigments and metabolic engineering of bacteria with a focus on applications of bacterial Pigments in food industry, pharmaceutical industry, dyeing as well as on other applications.

314 citations


Journal ArticleDOI
TL;DR: SDS-PAGE and zymogram analysis showed that Aspergillus fumigatus SK1 could secrete cellulases (endoglucanase, exoglucAnase and β-glucosidase), xylanase and protease, andEnzymatic degradation of alkaline treated OPT with concentrated crude cellulases and xylanases resulted in producing polyoses.

186 citations


Journal ArticleDOI
TL;DR: The results suggest that exopolysaccharide-stabilized SNPs can be used as an antimicrobial agent for various biomedical applications.

162 citations


Journal ArticleDOI
TL;DR: The results suggest that the marine eel fish skin collagen close to the Td (denaturation temperature) of mammalian collagen which could be used in the biomedical materials, food and pharmaceutical industries as an alternative source.

160 citations


Journal ArticleDOI
TL;DR: The results suggest that AgNPs may exert its antiproliferative effects on colon cancer cell line by suppressing its growth, arresting the G0/G1-phase, reducing DNA synthesis and inducing apoptosis.

153 citations


Journal ArticleDOI
TL;DR: In this article, chitosan was used as a flocculant to harvest freshwater microalgae Chlorella vulgaris and the recovery efficiency of C. vulgaris was tested at various chitosa concentrations.

126 citations


Journal ArticleDOI
TL;DR: The results indicate that the leachate itself can enable electricity production in an MFC, but the co-addition of different inocula significantly reduces the start-up time, and the superior performance of the anaerobic sludge-MFC was associated with the enrichment of both fermentative and electrogenic bacteria at the anode.

115 citations


Journal ArticleDOI
TL;DR: In this paper, the ability of aqueous two-phase systems composed of polyethylene glycol (PEG) and cholinium-based salts to extract tetracycline from the fermented broth of Streptomyces aureofaciens was evaluated.

109 citations


Journal ArticleDOI
TL;DR: The developments that have been made in molecular biology, directed evolution and structural conformation studies of α-amylases for improving their properties to suit various industrial applications are discussed in this review.

Journal ArticleDOI
TL;DR: Fermented black soybean milk enriched with GABA is a good candidate as an alternative treatment of depression and tests its anti-depressant activity in Sprague-Dawley (SD) rats.

Journal ArticleDOI
TL;DR: A pilot-scale down-flow BAC filtration system was constructed for treatment of ozonated waters and indicated the system could effectively remove dissolved organic carbon and assimilable organic carbon.

Journal ArticleDOI
Lidong Guo1, Hu Hou1, Bafang Li1, Zhaohui Zhang1, Shanshan Wang1, Xue Zhao1 
TL;DR: Results show that Alaska pollock skin could be utilized to generate iron-chelating peptides as an iron supplement in functional food industry.


Journal ArticleDOI
Jinxing Ma1, Zhiwei Wang1, Xinxia Zou1, Jiajun Feng1, Zhichao Wu1 
TL;DR: Phylogenetic spectrum and Venn diagrams revealed that the bacterial phyla in the two samples were nearly identical, and that the predominant microorganisms of them exhibited a high homology, Nevertheless, population distribution was different between them.

Journal ArticleDOI
TL;DR: In this paper, the performance of a new lipase from Novozymes (Callera Trans L) was studied for fatty acid methylesters (FAMEs) production in order to reduce the costs of the industrial enzymatic biodiesel production process.

Journal ArticleDOI
TL;DR: In this paper, a method for the efficient extraction of fucoxanthin and lipids containing polyunsaturated fatty acids (PUFAs) from the brown seaweed Undaria pinnatifida was developed and demonstrated at a laboratory scale.

Journal ArticleDOI
TL;DR: In this article, an initial fractionation of polysaccharides, proteins and their complexes with different molecular sizes and for further identification of the bioactive components was performed by gradient precipitation with ethanol at 1 5, 2/5, 1, 2, and 5 volume ratios to the liquid medium.

Journal ArticleDOI
TL;DR: Functional complementation analysis revealed C reinhardtii PDS catalyzes the conversion of phytoene to the colored carotenoid zeta-carotene, demonstrating clearly that the engineered endogenous CrPDS is a dominant selectable marker for C. reinhardtII and possibly for other green algae.

Journal ArticleDOI
TL;DR: Improved operational, thermal and storage stabilities of the immobilized laccase were obtained compared to the free counterpart and the use of low-cost matrices, like Amberlite for enzyme immobilization represents a promising product for enzymatic industrial applications.

Journal ArticleDOI
TL;DR: Simulated enzymatic hydrolysis of RuBisCO subunits indicated that thermolysin and papain had preferred cleavage patterns for releasing the cryptic peptides compared to gastrointestinal proteases, thereby providing cheaper and sustainable precursors of bioactive peptides.

Journal ArticleDOI
TL;DR: Interestingly, immobilized lipase showed fivefold higher catalytic activity and better thermal stability than the crude extract lipase CCL, and the biocatalyst was efficiently recycled for four successive reuses.

Journal ArticleDOI
TL;DR: In this paper, the authors examined the sensitivity of common carp myofibrillar protein (MP) to oxidising radicals produced by a hydroxyl radical-generating system and found that with increasing H2O2 concentrations and oxidation time, protein carbonyl content, surface hydrophobicity and turbidity of MP increased.

Journal ArticleDOI
TL;DR: Inhibition of the synthesis pathway with diphenylamine suggests an inverse relationship between carotenoid and copper biosorption by R. mucilaginosa RCL-11, a pigmented yeast isolated from a filter plant of a copper mine in the province of Tucuman, Argentina, which supports high concentrations of the heavy metal Cu(II).

Journal ArticleDOI
TL;DR: In this article, a batch simultaneous saccharification and fermentation (SSF) of steam-pretreated spruce with 13.7% water-insoluble solids (WIS) (25% total solids) was run in a stirred-tank reactor as well as in two reactors designed to handle solid or semi-solid material.

Journal ArticleDOI
TL;DR: Differences of bacterial com- munities in the three BAC filters were characterized using 454 pyrosequencing analysis, and high bacterial diversity in granular activated carbon samples from each BAC biofilter was observed.

Journal ArticleDOI
TL;DR: In this paper, the authors studied the evolution of water extractable organic matter (WEOM) from the percolate during the HSADB process and test the possibility of using the digestate as a soil amendment.

Journal ArticleDOI
TL;DR: In this article, a new pretreatment process for producing high-efficiency bioethanol from a lignocellulosic biomass was developed, where barley straw was pretreated with sodium hydroxide in a twin-screw extruder for continuous pretreatment.

Journal ArticleDOI
TL;DR: The combination of rotating biological contactors with MFCs derives a promising opportunity for wastewater treatment with a low cost and high quality effluent.