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solid state fermentation

Zhiying Wang, Pan Li, Lixin Luo, David J Simpson, Michael G Gänzle
DaQu is a spontaneous solid state cereal fermentation used as saccharification and starter culture in Chinese vinegar and liquor production. The evolution of microbiota in this spontaneous fermentation is controlled by the temperature profile which reaches temperatures from 50 to 65 °C for several days. Despite these high temperatures, mesophilic Enterobacteriaceae including Cronobacter and bacilli are present throughout the DaQu fermentation. This study aimed to determine whether DaQu spontaneous solid state fermentation selects for the heat resistant variants of these organisms...
August 17, 2018: Applied and Environmental Microbiology
Paul Olusegun Bankole, Adedotun Adeyinka Adekunle, Sanjay Prabhu Govindwar
Efficient decolorization of cibracron brilliant red 3B-A dye by novel white rot fungal consortium was studied in static and shaking conditions using solid state fermentation technology. Daldinia concentrica (DC) and Xylaria polymorpha (XP) consortium showed dye removal efficiency than the individual strains within 5 days. The enzymes analysis revealed significant inductions in laccase (84%), lignin peroxidase (78%) and manganese peroxidase (65%) by the fungal co-culture (DC + XP), Xylaria polymorpha (XP) and Daldinia concentrica (DC) respectively...
August 15, 2018: International Journal of Biological Macromolecules
Doddy Denise Ojeda-Hernández, Ricardo Cosío-Cuadros, Georgina Sandoval, Jorge Alberto Rodríguez-González, Juan Carlos Mateos-Díaz
Solid-state fermentation (SSF) has been largely employed during the last three decades to produce different biomolecules of industrial interest, particularly enzymes. Through the use of agroindustrial wastes as SSF substrates, an economic process of lipases production can be achieved. In this chapter we describe a comprehensive SSF method for producing an economical preparation of Rhizomucor miehei lipase, employing sugarcane bagasse and used vegetal oil as substrates. To demonstrate the usefulness of the lipase produced by this method, we utilized directly the dried fermented solid, as a heterogeneous biocatalyst for the ethanolysis of different fats and oils...
2018: Methods in Molecular Biology
Swati Sachdev, Anupriya Singh, Rana Pratap Singh
Use of agro-waste for production of value added products is a good alternative for developing low-cost carriers for formulation of Trichoderma -based bio-products. It provides avenues for safe utilization of wastes, while reducing cost and environment pollution load of waste disposal. The present study was undertaken to find suitable agro-waste for economical and higher mass production of Trichoderma lixii TvR1 under solid-state fermentation, optimizing culture conditions using mathematical model and assessing effect of formulated bio-product on growth of Spinach ( Spinacia oleracea )...
August 2018: 3 Biotech
Hongxing Qiao, Xiaojing Zhang, Hongtao Shi, Yuzhen Song, Chuanzhou Bian, Aizhen Guo
We investigated if fermentation with probiotic cultures could improve the production of health-promoting biological compounds in Astragalus membranaceus. We tested the probiotics Enterococcus faecium, Lactobacillus plantarum and Enterococcus faecium + Lactobacillus plantarum and applied PacBio single molecule, real-time sequencing technology (SMRT) to evaluate the quality of Astragalus fermentation. We found that the production rates of acetic acid, methylacetic acid, aethyl acetic acid and lactic acid using E...
August 8, 2018: Scientific Reports
Shagufta Kamal, Naheed Akhter, Samreen Gul Khan, Shumaila Kiran, Tahir Farooq, Muhammad Akram, Syed Muhammad Ali Shah, Imtiaz Mahmood Tahir, Muhammad Akhlaq, Fahad Said, Jawad Zaheer
Lovastatin is a natural competitive inhibitor of 3-hydroxy-3-methyl glutaryl coenzyme-A (HMG-CoA) reductase and inhibits specifically rate limiting step in cholesterol biosynthesis. Further, lovastatin in comparison with synthetic drugs has no well-reported side effects. Four pure isolated filamentous fungal strains including Aspergillus niger IBL, Aspergillus terreus FFCBP-1053, Aspergillus flavus PML and Aspergillus nidulans FFCBP-014 have been cultured by solid state fermentation (SSF) using rice straw as substrate for the synthesis of lovastatin...
July 2018: Pakistan Journal of Pharmaceutical Sciences
D Mudronová, V Karaffová, J Košcová, M Bartkovský, D Marcincáková, P Popelka, T Klempová, M Certík, J Macanga, S Marcincák
Gamma-linolenic acid (GLA) is a fatty acid from the ω-6 family. It is able to deliver a wide range of health benefits arising from its anti-inflammatory effects. An insufficient supply of GLA from agricultural and animal sources resulted in the development of a fermentation technique using lower filamentous fungi, which have the ability to accumulate high concentrations of GLA and beta-carotene during solid-state fermentation of cereals. The goal of this study was to observe the influence of the addition of prefermented cereal product, containing high amounts of GLA and beta-carotene, into the feed of broiler chickens on their immune status, and also the number of lactic acid bacteria and enterobacteria in gut content, which has never been studied before...
July 21, 2018: Poultry Science
Ram S Singh, Kanika Chauhan, Arju Jindal
Response surface methodology has been implemented for the utilization of corn bran for inulinase production by Penicillium oxalicum . CCRD of RSM with 15 runs was practiced to optimize three independent variables: moisture (70-90%), incubation time (4-8 days) and pH (5-8). However, other media constituents viz. inulin (1%), NaNO3 (0.2%), NH4 H2 PO4 (0.2%), KH2 PO4 (0.2%), MgSO4 ·7H2 O (0.05%) and FeSO4 ·7H2 O (0.001%) were kept constant during solid state fermentations. Solid state fermentations were carried out at 30 °C at flask-level...
July 2018: Journal of Food Science and Technology
Kai-Min Niu, Damini Kothari, Sang-Buem Cho, Sung-Gu Han, In-Geun Song, Sam-Churl Kim, Soo-Ki Kim
Herein, we explore the probiotic potentials and soybean meal (SBM) compound feed fermentative applications of Lactobacillus plantarum SK1305 strain isolated previously from Korean green chili pickled pepper (gochu-jangajji). The isolate exhibited higher acid (pH 2.5) and bile tolerance (0.3%, w/v) up to 2 h and 4 h, respectively. The cell-free culture supernatant (CFCS) displayed a broad spectrum antibacterial activities against various pathogens, which may be ascribed to high lactic acid production (L-form, 86...
July 20, 2018: Probiotics and Antimicrobial Proteins
Clémence Defois, Jérémy Ratel, Ghislain Garrait, Sylvain Denis, Olivier Le Goff, Jérémie Talvas, Pascale Mosoni, Erwan Engel, Pierre Peyret
Growing evidence indicates that the human gut microbiota interacts with xenobiotics, including persistent organic pollutants and foodborne chemicals. The toxicological relevance of the gut microbiota-pollutant interplay is of great concern since chemicals may disrupt gut microbiota functions, with a potential impairment of host homeostasis. Herein we report within batch fermentation systems the impact of food contaminants (polycyclic aromatic hydrocarbons, polychlorobiphenyls, brominated flame retardants, dioxins, pesticides and heterocyclic amines) on the human gut microbiota by metatranscriptome and volatolome i...
July 20, 2018: Scientific Reports
Aikaterini Papadaki, Keysson Vieira Fernandes, Afroditi Chatzifragkou, Erika Cristina Gonçalves Aguieiras, José André Cavalcanti da Silva, Roberto Fernandez-Lafuente, Seraphim Papanikolaou, Apostolis Koutinas, Denise Maria Guimarães Freire
Microbial oil produced from confectionery and wheat milling side streams has been evaluated as novel feedstock for biolubricant production. Nutrient-rich fermentation media were produced by a two-step bioprocess involving crude enzyme production by solid state fermentation followed by enzymatic hydrolysis of confectionery industry waste. Among 5 yeast strains and 2 fungal strains cultivated on the crude hydrolysate, Rhodosporidium toruloides and Cryptococcus curvatus were selected for further evaluation for biolubricant production based on fermentation efficiency and fatty acid composition...
July 6, 2018: Bioresource Technology
Barbara Bovo, Chiara Nadai, Wilson Josè Fernandes Lemos Junior, Milena Carlot, Alessio Giacomini, Viviana Corich
During white-grape winemaking, grape marc is separated from juice immediately after crushing. Both mark and juice are obtained from the same grapes, but they differ strongly for their physical and chemical properties. Marc is mainly composed of solid residues. Its pH is usually higher than that of the juice and Saccharomyces cerevisiae strains are largely present. Therefore, it can be considered as a potential alternative environment for the selection of industrial yeasts. In order to evaluate the effect of different pH and physical state of the two matrices on grapes yeast population composition, the isolation of S...
July 20, 2018: Journal of Food Science
Xiaoyan Liu, Xinjun Yu, Tong Zhang, Zhipeng Wang, Jiaxing Xu, Jun Xia, Aiyong He, Yubo Yan, Jiming Xu
An economical model of two-stage solid state fermentation (SSF) (prefermentation stage with Mucor flavus and in situ erythritol fermentation stage with Yarrowia lipolytica) for enhancing erythritol production was investigated. Buckwheat husk (BH) was utilized as inert support for the first time and okara as the substrate. Morphological properties suggested yeast cells were exposed in adequate oxygen leading to high erythritol yield, and enzyme activities analysis indicated M. flavus and Y. lipolytica grew and cooperated well during the two ferment stages...
October 2018: Bioresource Technology
Shou-Fu Duan, Pei-Jie Han, Qi-Ming Wang, Wan-Qiu Liu, Jun-Yan Shi, Kuan Li, Xiao-Ling Zhang, Feng-Yan Bai
The yeast Saccharomyces cerevisiae has been an essential component of human civilization because of its long global history of use in food and beverage fermentation. However, the diversity and evolutionary history of the domesticated populations of the yeast remain elusive. We show here that China/Far East Asia is likely the center of origin of the domesticated populations of the species. The domesticated populations form two major groups associated with solid- and liquid-state fermentation and appear to have originated from heterozygous ancestors, which were likely formed by outcrossing between diverse wild isolates primitively for adaptation to maltose-rich niches...
July 12, 2018: Nature Communications
Xiaohua Pan, Xuemei Nan, Liang Yang, Linshu Jiang, Benhai Xiong
As the co-enzyme of pyruvate dehydrogenase and α-ketoglutarate dehydrogenase, thiamine plays a critical role in carbohydrate metabolism in dairy cows. Apart from feedstuff, microbial thiamine synthesis in the rumen is the main source for dairy cows. However, the amount of ruminal thiamine synthesis, which is influenced by dietary N levels and forage to concentrate ratio, varies greatly. Notably, when dairy cows are overfed high-grain diets, subacute ruminal acidosis (SARA) occurs and results in thiamine deficiency...
July 10, 2018: British Journal of Nutrition
Li-Na Xu, Shang Guo, Shengwan Zhang
Three culinary-medicinal fungi and mushrooms (Agaricus bisporus AS2796, Helvella lacunosa X1 and Fomitiporia yanbeiensis S. Guo & L. Zhou) were individually inoculated into different cereal grains (wheat, rice, oat, corn, millet, quinoa, buckwheat, soybean, pea and sorghum) and the antioxidant properties of fungus-fermented products after solid-state fermentation (SSF) (0, 7, 14, 21, 28 and 35 days; 25°C) were studied. The results showed that the total phenol contents (TPCs) of the fermented cereals varied with fermentation time and the starter organisms...
August 1, 2018: FEMS Microbiology Letters
Filip Boratyński, Ewa Szczepańska, Aleksandra Grudniewska, Radosław Gniłka, Teresa Olejniczak
The study show usefulness of rapeseed cake, rich in fats and proteins byproduct generated after oil production, which may be used as a microbial medium for lipase and protease biosynthesis. Of 26 different filamentous fungi screened by solid-state fermentation, Penicillium camemberti AM83 was found to abundantly produce lipase and protease. Various process parameters were then optimized to maximize lipase and protease secretion, including carbon and nitrogen source, C/N ratio, metal ions, temperature, moisture content, initial pH, and inoculum size...
July 5, 2018: Scientific Reports
T S Tikhomirova, M S Taraskevich, O V Ponomarenko
Laboratory-scale bioreactors represent an important part of microbiological, biotechnological, and biochemical researches. The small volume bioreactors enable the biomass growth, extracellular metabolite production, solid-state fermentation, and biocatalytic processes in a controlled open system. Using the lab-scale bioreactors, the processes which were optimized in experiments can be scaled up to a pilot level. In turn, the manufacturing scale processes can be scaled down to study the heterogeneity of the system and its effect on the producer...
July 2, 2018: Applied Microbiology and Biotechnology
Ravindran Keppanan, Sivaramakrishnan Sivaperumal, Luis Carlos Ramos Aguila, Mubasher Hussain, Bamisope Steve Bamisile, Chandra Kanta Dash, Liande Wang
The entomopathogenic fungus Metarhizium anisopliae is widely used as biocontrol agent against many insect pests. In the present study, the potential isolate of M. anisopliae TK29 was isolated from the agricultural soils in Thekkady, India. The taxonomic identity of the isolate was confirmed based on its morphology and 18S rDNA gene sequence homology. Phylogenetic analysis confirmed that the isolated strains were related to the same species. A potential isolate (TK29) was optimized for mass cultivation and conidial spore production was enhanced using three different raw substrates (Rice, Maize, black gram) by solid-state fermentation...
June 26, 2018: Microbial Pathogenesis
Rosalia Rubel, Herta Stutz Dalla Santa, Leandro Freire Dos Santos, Luiz Claudio Fernandes, Bonald Cavalcante Figueiredo, Carlos Ricardo Soccol
Medicinal mushrooms are used in popular medicine largely as health promoters, mainly because of their antitumor and immunomodulatory activities. Ganoderma lucidum (lingzhi or reishi) and Agaricus brasiliensis are mushrooms that have long been used for medicinal purposes. This study evaluated their immunomodulatory and antitumor effects on mice fed a diet supplemented with G. lucidum and A. brasiliensis mycelia obtained from solid-state fermentation. For 14 weeks the mice were fed chow containing 50% A. brasiliensis and G...
2018: International Journal of Medicinal Mushrooms
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