Production of 6-pentyl-α-pyrone by Trichoderma viride

✍ Scribed by S. G. Prapulla; N. G. Karanth; K. H. Engel; R. Tressl

• Publisher: John Wiley and Sons
• Year: 1992
• Tongue: English
• Weight: 257 KB
• Volume: 7
• Category: Article
• ISSN: 0882-5734
• DOI: 10.1002/ffj.2730070412

✦ Synopsis

Abstract

Fermentative production of 6‐pentyl‐α‐pyrone, a lactone with a characteristic coconut aroma, by Trichoderma viride is described. The concentration of 6‐pentyl‐α‐pyrone reached a maximum of 90–110 ppm after 120 h of fermentation when it showed an inhibitory effect causing no further production of the α‐pyrone. The use of Amberlite XAD‐2 for alleviating the end‐product inhibition has been investigated. It has been shown that addition of Amberlite XAD‐2 at the start of the fermentation effectively overcomes product inhibition and leads to a marked increase in the yield of 6‐pentyl‐α‐pyrone.