energy storage substances of yeast
Evolution of fermented grain yeast communities in strong-flavored baijiu and functional validation of yeasts that produce superior-flavored substances
Yeast is one of the most important microorganisms in the fermentation of baijiu. It has a strong esterification capacity and also affects the aroma. Results: High-throughput sequencing results showed that the fermented grains (jiupei) during baijiu production were mainly composed of eight highly abundant yeast species.
The Role of Yeasts in Fermentation Processes
For example, yeast performs fermentation to obtain energy by converting sugar into alcohol. Fermentation processes were spontaneously carried out before the biochemical process was fully understood. In the 1850s and 1860s, the French chemist and microbiologist Louis Pasteur became the first scientist to study fermentation, when he …
A potential mechanism of energy-metabolism oscillation in an aerobic chemostat culture of the yeast …
The energy-metabolism oscillation in aerobic chemostat cultures of yeast is a periodic change of the respiro-fermentative and respiratory phase. In the respiro-fermentative phase, the NADH level was kept high and respiration was suppressed, and glucose was anabolized into trehalose and glycogen at a rate comparable to that of catabolism.
Starvation signals in yeast are integrated to coordinate metabolic reprogramming and stress response to ensure longevity
Studies on replicative and chronological aging in Saccharomyces cerevisiae have greatly advanced our understanding of how longevity is regulated in all eukaryotes. Chronological lifespan (CLS) of yeast is defined as the age-dependent viability of non-dividing cell populations. A number of nutrient s …
An Energy-Independent Pro-longevity Function of Triacylglycerol in Yeast
Intracellular triacylglycerol (TAG) is a ubiquitous energy storage lipid also involved in lipid homeostasis and signaling. Comparatively, little is known about TAG''s role in other cellular functions. Here we show a pro-longevity function of TAG in the budding yeast Saccharomyces cerevisiae.
Energy Metabolism by the Yeast Cell | SpringerLink
Glycogen is the major intracellular carbohydrate in yeast cells, along with the disaccharide trehalose. However, they have different metabolic functions. Glycogen is a multibranched polysaccharide of glucose molecules that serves as a source of energy in yeast (other fungi) insects and animals (Quain and Tubb 1982 ).
Antipyretic effect of inhaled Tetrastigma hemsleyanum polysaccharide on substance and energy metabolism in yeast …
The concentration variations of the central neurotransmitter, endocrine system, substance and energy metabolism indicators were measured to explore the physiological mechanism. Quantitative real-time PCR, Western bolt and Immunohistochemistry were performed to identify the correlation between antipyretic and …
IJMS | Free Full-Text | Spent Brewer''s Yeast as a Source of …
They are adsorbed on the yeast during fermentation in a percentage of 9–27% of the total bitter substances from wort [] and are mainly represented by humulons and isohumulons []. The debittering process is mainly used to obtain yeast extracts that have a high nutritional value [ 60, 70 ] and less for β-glucans because bitter substances …
Lipid droplet dynamics in budding yeast
LDs are highly dynamic and contribute to diverse cellular functions. The catabolism of the storage lipids within LDs is channeled to multiple metabolic pathways, providing molecules for energy production, membrane building blocks, and lipid signaling. LDs have been implicated in a number of protein degradation and pathogen infection processes.
A predictive dynamic yeast model based on component, energy, …
The proposed model considers the possible metabolic pathways of yeast. For each pathway, the time evolution of components, energy (ATP/ADP), and electron carriers (NAD + /NADH) are expressed with limitation factors for all quantities consumed by each respective pathway. In this manner, the model can predict the partition of these pathways …
Yeast Fermentation at Low Temperatures: Adaptation to Changing …
Nevertheless, yeast–yeast relations are also important in modulating the chemistry of edible matrices. Particularly interesting co-cultures include Saccharomyces and non- Saccharomyces species. Non- Saccharomyces yeasts are considered to have several beneficial effects, including limiting or enhancing target post-fermentation metabolites …
Antipyretic effect of inhaled Tetrastigma hemsleyanum polysaccharide on substance and energy metabolism in yeast …
Effect of THP on the related indices of substance and energy metabolism in mice with dry yeast fever Over half the energy released during oxidation in the body is rapidly converted into heat energy, which is mainly used to maintain body temperature ( Cannon, 2013 ; Ma et al., 2021 ).
Shape-stable phase change composite for highly efficiency thermal energy storage using metal-organic framework-encapsulated yeast …
All findings suggested that the ss-PCM by yeast-templated MOFs derived hierarchical porous carbon has good application prospects in high-density energy storage. Introduction In facing to the series environmental issues and energy problems that caused by the over usage of unsustainable fossil fuels, the utilization of renewable energy …
Caloric Restriction and Rapamycin Differentially Alter Energy Metabolism in Yeast …
Rapamycin (RM), a drug that inhibits the mechanistic target of rapamycin (mTOR) pathway and responds to nutrient availability, seemingly mimics the effects of caloric restriction (CR) on healthy life span. However, the extent of the mechanistic overlap between RM and CR remains incompletely understood. Here, we compared the impact …
Energy Storage in Yeast: Regulation and Competition with Ethanol Production …
Mechanisms that may regulate the storage of energy as triacylglycerol in Saccharomyces cerevisiae were examined. First, the kinetics of Dga1p, which mediates the majority of diacylglycerol esterification, the lone committed step in triacylglycerol synthesis, was measured in vitro. With an apparent K m of 17.0 μM, Dga1p has higher affinity for …
Revisiting yeast trehalose metabolism
Establishing the function of trehalose in yeast cells has led us, over the years, through a long path-from simple energy storage carbohydrate, then a stabilizer and protector of membranes and proteins, through a safety valve against damage caused by oxygen radicals, up to regulator of the glycolytic path. In addition, trehalose biosynthesis has ...
Glycerol metabolism and transport in yeast and fungi: established knowledge and ambiguities …
Abstract. There is huge variability among yeasts with regard to their efficiency in utilizing glycerol as the sole source of carbon and energy. Certain species show growth rates with glycerol comparable to those reached with glucose as carbon source; others are virtually unable to utilize glycerol, especially in synthetic medium.
NF-YC12 is a key multi-functional regulator of accumulation of seed storage substances in rice
Starch and storage proteins, the primary storage substances of cereal endosperm, are a major source of food for humans. However, the transcriptional regulatory networks of the synthesis and accumulation of storage substances remain largely unknown. Here, we identified a rice endosperm-specific gene, NF-YC12, that encodes a …
Metabolism of Storage Lipids and the Role of Lipid Droplets in the Yeast …
Lipids. Triglycerides. Storage lipids, triacylglycerols (TAG), and steryl esters (SE), are predominant constituents of lipid droplets (LD) in fungi. In several yeast species, metabolism of TAG and SE is linked to various cellular processes, including cell division, sporulation, apoptosis, response to stress, and lipotoxic ….
Advantage Assessment of Mixed Culture of Chlorella vulgaris and Yarrowia lipolytica for Treatment of Liquid Digestate of Yeast …
of C. vulgaris and Y. lipolytica, the nutrient removal efficiency, and the energy storage potential of the mono and mixed culture system were studied in detail to assess the feasibility of using the mixed culture of microalgae and yeast in the treatment of liquid digestate of yeast
A role for seipin in lipid droplet dynamics and inheritance in yeast
Deletion of FLD1, the functional orthologue of the human BSCL2 gene encoding seipin, leads to impaired dynamics of yeast lipid droplets and defective lipolysis, which might be due to aberrant ER structures in these mutants. Our data suggest a role for yeast seipin as a scaffolding protein that is required for the dynamics of a specific ...
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