Premature yeast flocculation factors from barley malt present in both malt husk and the non‐husk part |
| |
| Authors: | Yue‐Ling Shang Xiao‐Min Li Guo‐Lin Cai Jian Lu Jian Chen |
| |
| Affiliation: | Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology and National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, , Wuxi, Jiangsu, 214122 People's Republic of China |
| |
| Abstract: | In the present study, small‐scale fermentations of seven malts from different maltsters in China were used to monitor their premature yeast flocculation (PYF) potential. Husk exchange was applied between PYF negative malt (PYF‐) and PYF positive malt (PYF+) to investigate the PYF factors potentially present in the husk. The results showed that PYF factors were present in both malt husk and the non‐husk part. The two factors showed various ratios among different PYF+ malts, and either of them could induce PYF if it reached the threshold. Moreover, the major antimicrobial substances damaging the yeast cells were in the non‐husk part. Copyright © 2014 The Institute of Brewing & Distilling |
| |
| Keywords: | barley malt husk PYF factors yeast |
|
|
