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Safety and efficacy of the feed additives l‐cysteine and l‐cysteine hydrochloride (monohydrate and anhydrous) for all animal species (Wacker Chemie AG) [PDF]

EFSA Journal
Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of l‐cysteine and l‐cysteine hydrochloride (monohydrate and anhydrous) as flavouring feed additives for all animal species.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Carlo Nebbia, Alena Pechová, Miguel Prieto‐Maradona, Ilen Röhe, Katerina Theodoridou, Montserrat Anguita, Matteo L. Innocenti, Joana P. Firmino   +19 more
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Recent Advances, Challenges, and Metabolic Engineering Strategies in L-Cysteine Biosynthesis

Fermentation, 2023
L-Cysteine is a widely used unique sulfur-containing amino acid with wide application in the food, pharmaceutical, and agricultural industries. This paper concludes the advantages and disadvantages of chemical hydrolysis, enzymatic biotransformation, and
Wenwei Li, Zhen Zhou, Dan Wang
doaj   +2 more sources

Exchange of the l-cysteine exporter after in-vivo metabolic control analysis improved the l-cysteine production process with engineered Escherichia coli [PDF]

Microbial Cell Factories
Background l-Cysteine is a proteinogenic amino acid of high pharmaceutical and industrial interest. However, the fermentation process for l-cysteine production is faced with multiple obstacles, like the toxicity of l-cysteine for the cells, the low ...
Daniel Alejandro Caballero Cerbon, Dirk Weuster-Botz   +1 more
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L-cysteine mitigates busulfan-induced testicular injury through modulation of CBS/H2S axis [PDF]

Frontiers in Cell and Developmental Biology
Global male infertility, characterized by decreased spermatogenesis and sperm quality, is a significant concern. L-cysteine, essential for hydrogen sulfide (H2S) synthesis, offers numerous biological advantages.
Song Liu, Song Liu, Bin Wei, Bin Wei, Han Wei, Anran Xu, Anran Xu, Lianbing Sheng, Lianbing Sheng, Xiangyang Sun, Xiangyang Sun, Yunling Dong, Yunling Dong, Huijun Yang, Huijun Yang   +14 more
doaj   +2 more sources

Effects of L-cysteine on the synthesis and secretion of extracellular pigments in submerged fermentation of Monascus purpureus S109 [PDF]

Frontiers in Microbiology
Extracellular Monascus pigments (eMPs), as a crucial component of Monascus pigments (MPs) with functional activities, have been widely utilized. In this study, the effect of L-cysteine on the eMPs production capacity of S109 were investigated, along with
Sixu Lin, Xue Yang, Junyao Wang, Qinghua Yu, Bing Li, Xuerui Yan   +5 more
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L-cysteine enhances heat-stress adaptation in meat-type chickens through modulation of cysteine-metabolic and nutrient transporter genes [PDF]

Poultry Science
Heat stress (HS) is a major challenge in poultry production due to its negative effects on growth, metabolism, and redox balance. Excessive reactive oxygen species generated during HS contribute to oxidative damage, emphasizing the need for nutritional ...
Bikash Aryal, Oluwatomide W. Ariyo, Josephine Kwakye, Selorm Sovi, Ahmed F.A. Ghareeb, Evan Hartono, Marie C. Milfort, Alberta L. Fuller, Romdhane Rekaya, Samuel E. Aggrey   +9 more
doaj   +2 more sources

Effect of supplementing L-cysteine and its group analogs on frozen semen quality of bulls: A meta-analysis [PDF]

Veterinary World, 2022
Background and Aim: The quality of frozen bull sperm after thawing is influenced by the primary diluent and antioxidant. This meta-analysis was conducted to determine the effect of supplementing L-cysteine and its group analogs on the quality of frozen ...
Sari Yanti Hayanti, Mohammad Miftakhus Sholikin, Anuraga Jayanegara, Mokhamad Fakhrul Ulum, Marchie Astrid da Costa, Fitriawaty Fitriawaty, Surya Surya, Maureen Chrisye Hadiatry, Santiananda Arta Asmarasari, Eko Handiwirawan, Yenny Nur Anggraeny, Eni Siti Rohaeni, Salfina Nurdin Ahmad, Bustami Bustami, Aryogi Aryogi, Dicky Pamungkas, Yenni Yusriani   +16 more
doaj   +1 more source

Inhibition of L-Cysteine on the Browning of Fresh Wet Noodles

Foods, 2021
This research explored the effect of L-cysteine on the browning of fresh wet noodles (FWN). With the increasing addition of L-cysteine (0.02–0.1%), the ΔL* decreased and Δa*, Δb* increased. The L-cysteine could reduce the pH value and polyphenol oxidase (
Xin-Ting Wu, Xiao-Na Guo, Ke-Xue Zhu
doaj   +1 more source

Preparation and characterization of soy protein isolate films by pretreatment with cysteine

Food Chemistry: X, 2023
The effect of cysteine concentration on the viscosity of soy protein isolate (SPI)-based film-forming solution (FFS) and physicochemical properties of SPI films was investigated.
Jialin Jiang, Linfan Shi, Zhongyang Ren, Wuyin Weng   +3 more
doaj   +1 more source

Evaluate the Therapeutic Effect of Allicin (L-cysteine) on Clinical Presentation and Prognosis in Patients with COVID-19

European Journal of Translational Myology, 2021
The antiviral effectiveness of allicin (L-cysteine) has been shown by numerous studies in both levels of clinical and animals. The aim of this study was to evaluate the therapeutic effect of allicin (L-cysteine) on clinical presentation and prognosis. In
Hosein Yaghoubian, Hossein Niktale, Arash Peivandi Yazdi, Vahideh Ghorani, Masoud Mahdavi Rashed, Amir Masoud Hashemian   +5 more
doaj   +1 more source