Enhanced Methane Production from Food Waste Using Cysteine To Increase Biotransformation of l-Monosaccharide, Volatile Fatty Acids, and Biohydrogen

Environmental Science & Technology
Hui Liu, Yinguang Chen

Abstract

The enhancement of two-stage anaerobic digestion of polysaccharide-enriched food waste by the addition of cysteine-an oxygen scavenger, electron mediator, and nitrogen source-to the acidification stage was reported. It was found that in the acidification stage the accumulation of volatile fatty acids (VFA), which mainly consisted of acetate, butyrate, and propionate, was increased by 49.3% at a cysteine dosage of 50 mg/L. Although some cysteine was biodegraded in the acidification stage, the VFA derived from cysteine was negligible. In the methanogenesis stage, the biotransformations of both VFA and biohydrogen to methane were enhanced, and the methane yield was improved by 43.9%. The mechanisms study showed that both d-glucose and l-glucose (the model monosaccharides) were detectable in the hydrolysis product, and the addition of cysteine remarkably increased the acidification of l-glucose, especially acetic acid and hydrogen generation, due to key enzymes involved in l-glucose metabolism being enhanced. Cysteine also improved the activity of homoacetogens by 34.8% and hydrogenotrophic methanogens by 54%, which might be due to the electron transfer process being accelerated. This study provided an alternative method to improve...Continue Reading

References

Nov 1, 1995·The American Journal of Clinical Nutrition·G V LevinJ R Beadle
Jan 1, 1994·Antonie van Leeuwenhoek·G Diekert, G Wohlfarth
Dec 1, 1996·Glycobiology·S MuniruzzamanA D Elbein
Jan 22, 2000·Journal of Food Protection·D A BautistaP J Shand
Jul 17, 2001·Journal of Agricultural and Food Chemistry·J C MauricioJ M Ortega
Feb 23, 2002·Bioresource Technology·Herbert H P Fang, Hong Liu
Mar 1, 2002·Biotechnology and Bioengineering·Youngseob YuSeokhwan Hwang
Jul 30, 2002·Environmental Science & Technology·Ruey-An Doong, Bernhard Schink
Oct 31, 2002·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Hai-Lou XuJoo-Hwa Tay
Nov 7, 2003·Applied and Environmental Microbiology·Volker Müller
Dec 6, 2003·Environmental Science & Technology·Sang-Eun OhBruce E Logan
Feb 24, 2004·Journal of the Air & Waste Management Association·Sun-Kee Han, Hang-Sik Shin
Mar 16, 2004·Water Research·Yanguang Song, Bruce E Logan
Oct 19, 2005·Advances in Parasitology·Tomoyoshi NozakiMasaharu Tokoro
May 26, 2010·Environmental Science & Technology·Dong ZhangXiaoyu Zhu
Jul 27, 2011·Environmental Science & Technology·Abdul-Sattar Nizami, Jerry D Murphy
Nov 2, 2011·Environmental Science & Technology·Marta CarballaAlmudena Hospido
Dec 20, 2011·Water Research·He LiuHan-Qing Yu
Oct 6, 2012·The Journal of Biological Chemistry·Tetsu ShimizuAkira Nakamura
Mar 19, 2013·Carbohydrate Polymers·Soledad MateoAlberto J Moya
Dec 29, 2015·Bioresource Technology·M A VoelkleinJ D Murphy
Aug 5, 2016·Environmental Science and Pollution Research International·Mohammad Mehdi AminMohammad Ghasemian

❮ Previous
Next ❯

Citations

Aug 21, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Yen-Keong CheahJoan Mata-Álvarez
Jul 16, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Ya-Nan Xu, Yinguang Chen
Aug 28, 2020·Environmental Science & Technology·Miao YanIrini Angelidaki
Nov 18, 2021·Environmental Science & Technology·Xuran LiuDongbo Wang

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.