title: Solid state fermentation of food waste mixtures for single cell protein, aroma volatiles and fat production.
abstract: Growth of selected microorganisms of industrial interest (Saccharomyces cerevisiae, Kluyveromyces marxianus and kefir) by solid state fermentation (SSF) of various food industry waste mixtures was studied. The fermented products were analysed for protein, and nutrient minerals content, as well as for aroma volatile compounds by GC/MS. The substrate fermented by K. marxianus contained the highest sum of fat and protein concentration (59.2% w/w dm) and therefore it could be considered for utilisation of its fat content and for livestock feed enrichment. Regarding volatiles, the formation of high amounts of ε-pinene was observed only in the SSF product of kefir at a yield estimated to be 4 kg/tn of SSF product. A preliminary design of a biorefinery-type process flow sheet and its economic analysis, indicated potential production of products (enriched livestock feed, fat and ε-pinene) of significant added value.
authors.affiliation: Food Biotechnology Group, Department of Chemistry, University of Patras, Patras 26500, Greece.
authors.forename: Theodoros
authors.initials: T
authors.lastname: Aggelopoulos
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Katsieris
authors.forename: Argyro
authors.initials: A
authors.lastname: Bekatorou
authors.forename: Ashok
authors.initials: A
authors.lastname: Pandey
authors.forename: Ibrahim M
authors.initials: IM
authors.lastname: Banat
authors.forename: Athanasios A
authors.initials: AA
authors.lastname: Koutinas
mesh_terms: D004044:Dietary Proteins / Q000032:analysis* / Q000378:metabolism; D005227:Fatty Acids / Q000032:analysis* / Q000302:isolation & purification / Q000378:metabolism; D008401:Gas Chromatography-Mass Spectrometry; D007220:Industrial Waste; D007716:Kluyveromyces / Q000378:metabolism; D039821:Monoterpenes / Q000032:analysis / Q000302:isolation & purification / Q000378:metabolism; D012037:Refuse Disposal / Q000379:methods*; D012441:Saccharomyces cerevisiae / Q000378:metabolism; D052617:Solid Phase Microextraction; D055549:Volatile Organic Compounds / Q000032:analysis* / Q000302:isolation & purification / Q000378:metabolism
chemical_list: D004044:Dietary Proteins; D005227:Fatty Acids; D007220:Industrial Waste; D039821:Monoterpenes; D055549:Volatile Organic Compounds; C012551:single cell proteins
keywords: food industry wastes; single cell protein; solid state fermentation; ε-pinene