Biohydrogen Production From Food Waste by Anaerobic Fermentation

2005 ◽  
Author(s):  
Jun Cheng ◽  
Junhu Zhou ◽  
Binfei Xie ◽  
Lin Xie ◽  
Jianzhong Liu ◽  
...  
Keyword(s):  
Butyric Acid ◽  
Anaerobic Fermentation ◽  
Biohydrogen Production ◽  
Food Wastes ◽  
Digested Sludge ◽  
Lean Meat ◽  
Chromatography Analysis ◽  
Gas Chromatography Analysis ◽  
Acid Type ◽  
Fermentation Solution

The biohydrogen production from food wastes by anaerobic fermentation of digested sludge is studied. It is found by gas chromatography analysis that the volumetric ratios of H2 to CO2 in the biogases derived from rice, potato, lean meat and fat are respectively 0.77, 0.82, 0.93 and 0.82. The yield of methane is quite little, because the methane-producing activity is restrained and the hydrogen-producing activity is simultaneously kept when the digested sludge is preheated in the boiling water. Ethanol (0.43%) is the highest volatile fatty acid in the fermentation solution derived from lean meat, implying that it belongs to ethanol-type fermentation. The butyric acid concentrations are the highest (respectively 0.96%, 0.44% and 0.34%) in the fermentation solutions derived from rice, potato and fat, which implies that they all belong to butyric acid-type fermentation.

scholarly journals Seawater Biorefinery of Avicennia Marina –Biomethane Potential at Seawater Conditions

2016 ◽  
Vol 08 (1) ◽  
Keyword(s):  
Fresh Water ◽  
United Arab Emirates ◽  
Sea Water ◽  
Anaerobic Fermentation ◽  
Avicennia Marina ◽  
Chromatography Analysis ◽  
Batch System ◽  
Gas Chromatography Analysis ◽  
Fuels And Chemicals ◽  
Biomethane Production

Lignocellulose is considered as an abundant source of carbohydrates that can be used to produce renewable fuels and chemicals such as biomethane, which have economic and environmental advantages over fossil resources. However, conventional bioprocesses are based on the use of fresh water. Finding a new way to minimize the need for fresh water is economically important. This study focuses on the feasibility of bioenergy production from local mangroves plant using sea water biorefinery concept. Samples of Avicennia marina were collected from the coastal areas in Ras Al Khaimah, United Arab Emirates. Based on anaerobic fermentation, inoculum was added to batch system that had sea water and the sampled biomass of 1.09g. Gas chromatography analysis had showed an increment in the biomethane production over an incubation period of initially of forty eight days at 37 ̊C and the last and highest reading reached 52.8 mlCH4/gVS by day 48.

Diversity of Root Bacteria from Peanut Cropping Systems

2004 ◽  
Vol 31 (2) ◽  
pp. 86-91 ◽  
Author(s):  
D. T. Gooden ◽  
H. D. Skipper ◽  
J. H. Kim ◽  
K. Xiong
Keyword(s):  
Fatty Acids ◽  
Biological Control ◽  
Gas Chromatography ◽  
Cropping Systems ◽  
Cropping System ◽  
Critical Research ◽  
Chromatography Analysis ◽  
Rotation System ◽  
Gas Chromatography Analysis ◽  
Peanut Production

Abstract Rhizobacteria play an important role in sustainable agriculture via plant growth and biological control of pests in a number of ecosystems. Understanding the interactions of crop rotation and rhizobacteria on peanut production is a critical research need. Development of a database on the rhizobacteria obtained from continuous and rotational fields of peanut was initiated in 1997 and terminated in 2000. Peanut was planted in monoculture for 4 yr. In rotational plots, peanut, cotton, corn, and peanut were planted in sequence. Rhizobacteria were isolated from the roots of crop plants grown in a Norfolk soil near Florence, SC. These isolates were identified by composition of fatty acids from gas chromatography analysis (GC/FAME). Arthrobacter and Bacillus were the major genera from non-rhizosphere soils. At initiation of this study in July 1997, the plots selected for continuous peanut had more diversity in rhizobacteria than those plots selected for rotation. In July 2000, rhizobacteria diversity was greater from peanut roots in the rotation cropping system than continuous peanut. Even though rhizobacteria diversity was greater in the rotation system, higher peanut yields were recorded in the continuous peanut system in 2000. Burkholderia spp. were always isolated from the peanut and other crop rhizospheres at each sampling date.

Ipomoea aquatica as a new substrate for enhanced biohydrogen production by using digested sludge as inoculum

Energy ◽  
2017 ◽  
Vol 118 ◽  
pp. 264-271 ◽  
Author(s):  
Mishma S. Stanislaus ◽  
Nan Zhang ◽  
Chenyu Zhao ◽  
Qi Zhu ◽  
Dawei Li ◽  
...  
Keyword(s):  
Biohydrogen Production ◽  
Digested Sludge ◽  
Ipomoea Aquatica

scholarly journals Musa balbisiana and Musa paradisiaca Starches Increase SCFA and Caspase-3 as well as Decrease β-glucuronidase and MDA of Mouse Model for Colon Cancer

2021 ◽  
Vol 13 (1) ◽  
pp. 91-6
Author(s):  
Diana Nur Afifah ◽  
Fauzia Purnamasari ◽  
Luthfiatul Khusna ◽  
Noviasti Rahma Utami ◽  
Aida Fitri Nazillah ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Mouse Model ◽  
Resistant Starch ◽  
Caspase 3 ◽  
Enzyme Linked Immunosorbent Assay ◽  
Musa Balbisiana ◽  
Chromatography Analysis ◽  
Musa Paradisiaca ◽  
Gas Chromatography Analysis ◽  
Low Glycemic Index

BACKGROUND: Administration of resistant starch (RS) influences the diversity and the composition of microbiota as well as inhibits the growth of cancer cell. Banana as a potential source of RS has been reported. Although Musa paradisiaca has been reported to induce apoptosis in colon cancer cells, Musa balbisiana, which has low glycemic index and suitable for particular patients, has not been investigated yet.METHODS: Starches of M. balbisiana and M. paradisiaca were prepared and mixed with other components to make 3 types of mouse pellets. Mouse model for colon cancer was prepared and fed with different types of mouse pellets. Blood was collected and processed for measuring β-glucuronidase and malondialdehyde (MDA) with Enzyme-linked Immunosorbent Assay (ELISA) method. Resected ceca were incised to collect the inner part for short-chain fatty acid (SCFA) measurement with gas chromatography analysis. Resected colas were fixed and processed for immunohistochemistry to detect Caspase-3.RESULTS: Colon-cancer-mice fed with the M. balbisiana and M. paradisiaca starches-contained pellets had significant higher concentrations of total SCFA (p=0.003), acetic acid (p=0.000), propionic acid (p=0.000) and butyric acid (p=0.000); lower concentration of β-glucuronidase (p<0.001); higher Caspase-3 score (p=0.040); and lower MDA concentration (p<0.001) than colon-cancer-mice fed with standard pellet (control).CONCLUSION: M. balbisiana and M. paradisiaca starches could be suggested as potential anti-colon cancer RS. Further research should be carried out to disclose the starches mechanisms in colon cancer cell.KEYWORDS: Musa balbisiana, Musa paradisiaca, colon cancer, resistant starch, Caspase-3, SCFA, β-glucuronidase, malondialdehyde

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