2018
DOI: 10.1002/bab.1634
|View full text |Cite
|
Sign up to set email alerts
|

Peptide (Lys–Leu) and amino acids (Lys and Leu) supplementations improve physiological activity and fermentation performance of brewer's yeast during very high‐gravity (VHG) wort fermentation

Abstract: Lys and Leu were generally considered as the key amino acids for brewer's yeast during beer brewing. In the present study, peptide Lys-Leu and a free amino acid (FAA) mixture of Lys and Leu (Lys + Leu) were supplemented in 24 °P wort to examine their effects on physiological activity and fermentation performance of brewer's yeast during very high-gravity (VHG) wort fermentation. Results showed that although both peptide Lys-Leu and their FAA mixture supplementations could increase the growth and viability, int… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

0
33
0

Year Published

2020
2020
2024
2024

Publication Types

Select...
8
1

Relationship

3
6

Authors

Journals

citations
Cited by 25 publications
(33 citation statements)
references
References 38 publications
0
33
0
Order By: Relevance
“…It was noteworthy that WGH-D showed the highest biomass (6.9 g/L dry cell), which might be due to its high content of peptides (99.03%) ( Table 1). Previous study found that peptide not only did not compete with the absorption of amino acids, but also could promote the absorption of amino acids (Yang et al 2018c).…”
Section: Amino Acid Compositions Of Wgh and Their Ethanol Fractionsmentioning
confidence: 94%
See 1 more Smart Citation
“…It was noteworthy that WGH-D showed the highest biomass (6.9 g/L dry cell), which might be due to its high content of peptides (99.03%) ( Table 1). Previous study found that peptide not only did not compete with the absorption of amino acids, but also could promote the absorption of amino acids (Yang et al 2018c).…”
Section: Amino Acid Compositions Of Wgh and Their Ethanol Fractionsmentioning
confidence: 94%
“…2. The contents of glycerol and trehalose in the cells showed a wave-like change, and peaks appeared in the early and late stages of fermentation, respectively, which might result from high osmotic pressure in the early stage of fermentation and high ethanol concentration in the late stage of fermentation (Yang et al 2018c). The results suggested that cells could quickly adapt to environmental changes by regulating self-metabolism, such as glycerol and trehalose synthesis (Deesuth et al 2016;Li et al 2016;Luo et al 2018).…”
Section: Effects Of Wgh Additions On the Accumulation Of Trehalose Anmentioning
confidence: 97%
“…Similarly, a previous study from Yue et al [75] showed that the addition of 0.8 g/L in nitrogen-equivalent of urea resulted in an increase of ethanol concentration from 120 (control) to 135 g/L although the supplementation of similar levels of ammonium sulfate has not evidenced any benefits. In addition to the previous examples, numerous studies have also explored the application of more expensive components, such as yeast extract [76][77][78] and amino acids [79]. Nevertheless, on an industrial scale context, these will likely seem less attractive and thus have been receiving less and less attention these days.…”
Section: Nutritional Supplementationmentioning
confidence: 99%
“…Although WGH-D contained a very small amount of FAA (8.20 mg/g) (Table 1), it resulted in the maximum absorption of FAN (125.65 mg/L) and amino acids (1212.3 mg/L) ( Table 3). These results indicated that bioactive peptides in WGH-D could promote the absorption of amino acids in yeast during the fermentation, which might be due to non-competition uptake between peptide and amino acid (Lei et al 2013b;Yang et al 2018b). As outlined in Table 3, addition with WGH-D could observably improve the uptake of Gly, Ile, Leu, Tyr, Phe, NH 4 + , His, Trp, Arg and Pro (p < 0.05) by yeast cells compared with the control, which further indicated that the addition of peptides could alter the pattern of nitrogen metabolisms in yeast during fermentation (Kitagawa et al 2008;Yang et al 2018b).…”
Section: Effects Of Wgh Additions On Nitrogen Metabolism Of Brewer's mentioning
confidence: 99%