4.7 Article

Bioproduction of 2-Phenylethanol through Yeast Fermentation on Synthetic Media and on Agro-Industrial Waste and By-Products: A Review

期刊

FOODS
卷 11, 期 1, 页码 -

出版社

MDPI
DOI: 10.3390/foods11010109

关键词

2-phenylethanol; agro-industrial waste; biotechnology; microbial fermentation; yeasts; natural aromas; in situ product recovery

资金

  1. Ministry of Higher Education, Research and Innovation in France
  2. Research Council of the Saint Joseph University of Beirut, in Lebanon [FS-165]

向作者/读者索取更多资源

Due to the pleasant rosy scent, there is a huge market demand for the aromatic alcohol 2-phenylethanol (2-PE). The most promising method for its production is through microbial fermentation, particularly using yeasts, which have the ability to produce 2-PE using l-Phe as precursor. Some agro-industrial waste and by-products with high nutritional value can be utilized as suitable media for microbial growth, including the production of 2-PE through yeast fermentation.
Due to its pleasant rosy scent, the aromatic alcohol 2-phenylethanol (2-PE) has a huge market demand. Since this valuable compound is used in food, cosmetics and pharmaceuticals, consumers and safety regulations tend to prefer natural methods for its production rather than the synthetic ones. Natural 2-PE can be either produced through the extraction of essential oils from various flowers, including roses, hyacinths and jasmine, or through biotechnological routes. In fact, the rarity of natural 2-PE in flowers has led to the inability to satisfy the large market demand and to a high selling price. Hence, there is a need to develop a more efficient, economic, and environmentally friendly biotechnological approach as an alternative to the conventional industrial one. The most promising method is through microbial fermentation, particularly using yeasts. Numerous yeasts have the ability to produce 2-PE using l-Phe as precursor. Some agro-industrial waste and by-products have the particularity of a high nutritional value, making them suitable media for microbial growth, including the production of 2-PE through yeast fermentation. This review summarizes the biotechnological production of 2-PE through the fermentation of different yeasts on synthetic media and on various agro-industrial waste and by-products.

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