title: Penetration of Rhizopus oligosporus into Soybeans in Tempeh.
abstract: Histological observations were made on the penetration of hyphae of Rhizopus oligosporus into soybean cotyledons in tempeh, an Indonesian soybean food. Hyphal penetrations averaged one per 1,400 mum (+/-390 mum) on the curved (outer) cotyledon surface and one per 1,010 mum (+/-340 mum) on the flat (inner) one. Hyphae infiltrated to a depth of 742 mum, or about 25% of the average width of a soybean cotyledon. This previously unreported degree of penetration offers partial explanation for the rapid physical and chemical changes in soybeans during tempeh fermentation.
authors.affiliation: Department of Botany, Southern Illinois University, Carbondale, Illinois 62901.
authors.forename: A M
authors.initials: AM
authors.lastname: Jurus
authors.forename: W J
authors.initials: WJ
authors.lastname: Sundberg