The use of milk permeate in the production of extracellular bioemulsifier from Streptococcus thermophilus strains
Abstract: Four bacteria strains of Streptococcus thermophilus were cultivated on mille permeate, supplemented with yeast extract, peptone and lactose and on M17 broth to select the best strain which gives the highest bioemulsifiers yield. The best strain was Streptococcus thermophilus P which gave the highest growth in milk
permeate at 37.C for 24 h at pH 7. " "
The obtained bioemulsifier was able to stabilize butteroil-in-water emulsions over a broad range of conditions; namely pH 2 to 11, up to 5% sodium chloride and up to 15% sucrose in the aqueous phase. Also in the presence of low concentrations of various solutes. emulsions were stable to three cycles of freezing and thawing. Also the bioemulsifier maintained high emulsion activity after heat treatment up to 85°C /l0 min.
Keywords: Bacteria Streptococcus thermophilus. emulsifier emulsion activity.
Publication year 2010
Pages 149-157
Availability location معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
Availability number
Organization Name
serial title Egyptian Journal of Dairy Science
ISSN 0378-2700
Author(s) from ARC
External authors (outside ARC)
    محمد نبيل المجدوب جامعة عين شمس
AGROVOC
TERMS		 Lactose. Milk. Streptococcus thermophilus. Yeast extracts.
Proposed Agrovoc emulsifier emulsion activity;
Publication Type Journal
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