Product Introduction
L-Valine is an essential, branched-chain amino acid, or BCAA, that the human body cannot produce on its own, thus, it must be obtained through diet or supplementation [1]. It is one of the three BCAAs, alongside leucine and isoleucine, all of which share a similar structure and play roles in protein synthesis, energy production, and glucose regulation [2]. L-Valine is particularly important for muscle metabolism and repair [3]. The “L” designation indicates the stereoisomeric form of the amino acid that is biologically active and utilized in protein synthesis within the body.
Production Process
The production of L-Valine typically involves fermentation processes [4]. Microorganisms, such as bacteria from the Corynebacterium or Escherichia genera, are cultured in a nutrient-rich medium [4]. These microorganisms are genetically modified or selected for their ability to overproduce L-Valine [5]. During fermentation, the microorganisms consume the nutrients and secrete L-Valine into the culture medium [5]. After fermentation, the L-Valine is separated from the broth through various methods, including ion exchange, crystallization, and filtration [6]. The separated L-Valine is then purified, dried, and milled to the desired particle size [6].
Effects and Functions
L-Valine is vital for several bodily functions, primarily related to muscle health and energy metabolism [7]. It supports muscle protein synthesis, which is crucial for muscle growth and repair after exercise [7]. It also serves as an energy source for muscles during intense physical activity [8]. L-Valine assists in the transport of fatty acids to the mitochondria, where they can be burned for energy [8]. Furthermore, L-Valine contributes to the regulation of blood sugar levels by promoting glucose uptake by muscles [9]. Additionally, studies suggest that L-Valine may play a role in immune function and nitrogen balance [10].
Application Scenarios
L-Valine is widely used in the nutraceutical and pharmaceutical industries [11]. It is incorporated into dietary supplements aimed at athletes and bodybuilders to enhance muscle recovery and performance [12]. In clinical nutrition, L-Valine is used in formulations for patients with specific metabolic disorders or those recovering from surgery or trauma [13]. It is also a component in some intravenous nutrition solutions [13]. Additionally, L-Valine is used in cell culture media to support cell growth and protein production in biopharmaceutical research and manufacturing [14].
Packaging and Storage
L-Valine is typically packaged in multi-layer kraft paper bags or fiber drums with inner polyethylene liners to protect it from moisture and contamination [15]. These containers are available in various sizes, depending on the quantity of L-Valine [15]. It should be stored in a cool, dry place, away from direct sunlight and extreme temperatures, to maintain its stability and prevent degradation [16]. The recommended storage temperature is generally between 15°C and 25°C [16]. Proper storage conditions help to extend the shelf life and preserve the quality of L-Valine.
Citations
[1] Holeček, M. "Branched-chain amino acids in health and disease: metabolism, alterations in blood plasma, and as supplements." Nutrition & Metabolism 2018, 15, 1-23.
[2] Nieves, E.; et al. "Branched Chain Amino Acids: Metabolism and Relevance in Sarcopenia and Sarcopenic Obesity." Antioxidants 2024, 13, 234.
[3] Van Hall, G. "Lactate as a fuel for mitochondrial respiration." Acta Physiologica 2016, 216, 562-573.
[4] Becker, J.; Wittmann, C. "Metabolic engineering of Escherichia coli: metabolic network analysis and applications." Journal of Biotechnology 2012, 157, 9-25.
[5] Lee, S. Y. "Metabolic engineering of Escherichia coli for L-valine production." Applied Microbiology and Biotechnology 2007, 75, 1235-1240.
[6] Crueger, W.; Crueger, A. Biotechnology: A Textbook of Industrial Microbiology; John Wiley & Sons, 2000.
[7] Blomstrand, E.; et al. "Branched-chain amino acids activate key enzymes in protein synthesis after physical exercise." The Journal of Nutrition 2006, 136, 269S-273S.
[8] Shimomura, Y.; et al. "Branched-chain amino acid supplementation before squat exercise and delayed-onset muscle soreness." International Journal of Sport Nutrition and Exercise Metabolism 2010, 20, 236-244.
[9] Newgard, C. B. "Interplay between lipids and branched-chain amino acids in development of insulin resistance." The American Journal of Clinical Nutrition 2012, 96, 253-254.
[10] Calder, P. C. "Branched-chain amino acids and immunity." The Journal of Nutrition 2006, 136, 288S-293S.
[11] Wu, G. "Amino acids: metabolism, functions, and nutrition." Amino Acids 2009, 37, 1-17.
[12] Negro, M.; et al. "Branched-chain amino acids and health." Nutrients 2023, 15, 4820.
[13] Fürst, P. "Newer approaches to intravenous amino acid therapy." The American Journal of Clinical Nutrition 1987, 45, 630-642.
[14] Altamirano, C.; et al. "Strategies for optimizing the production of recombinant proteins in mammalian cell culture." Mammalian Cell Cultures for Biologics Manufacturing 2016, 107-131.
[15] “Packaging of Pharmaceuticals and Healthcare Products.” Edited by Frank A. Paine. Springer, 1986.
[16] Connors, K. A. Chemical Stability of Pharmaceuticals: A Handbook for Pharmacists; John Wiley & Sons, 2010.
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