13,602
edits
Changes
update to Toluraspora delbrueckii
====General Information====
<ref name="10 strain TD">[http://onlinelibrary.wiley.com/doi/10.1002/yea.3146/full . Screening for new brewing yeasts in the non-Saccharomyces sector with Torulaspora delbrueckii as model. Maximilian Michel, Jana Kopecká. 2016.]</ref>
=====Hop Resistance=====
The resistance to alpha acids were also measured among these 10 strains using 0 PPM, 50 PPM, and 90 PPM. All strains were found to be resistant to these levels of alpha acids not affecting their growth. Some strains however were shown to have slower growth rates in the presence of 90 PPM and more <ref name="10 strain TD"></ref>. One strain of ''Torulaspora delbrueckii'' was found to biotransform monoterpenes from hop oils (see [[Hops#Hop_Derived_Compounds_In_Beer_and_Biotransformations|Hop Biotransformations]]). Bellut et al. (2018) found that IBU's up to 50 had no impact on the growth of the strain of ''T. delbruekii'' that they tested, but they did not test the growth of this strain in wort above 50 IBU <ref name="Bellut_2018" />.
=====Ethanol Resistance=====
|-
|}
Bellut et al. (2018) found that a strain of ''T. delbruekii'' isolated from kombucha could ferment glucose, fructose, sucrose, melibiose, and raffinose, but could not ferment maltose, maltotriose, or cellobiose <ref name="Bellut_2018" />.
=====Cross Resistance=====
|-
|}
=====Flavor Compounds=====
Bellut et al. (2018) found that a strain of ''T. delbruekii'' isolated from kombucha produced much less higher alcohols than WLP001 (n-propanol, isobutanol, and isoamyl alcohol) and also much lower esters, but slightly higher diacetyl and acetaldehyde. It also did not produce phenols and had moderate flocculation <ref name="Bellut_2018" />.
===''Wickerhamomyces'' spp.===