Effect of Moringa oleifera leaves extract as a growth factor on viability of some encapsulated probiotic bacteria

Effect of Moringa oleifera leaves extract as a growth factor on viability of some encapsulated probiotic bacteria

2014

E09733

Moringa oleifera is one of the most useful tropical trees. Its leaves contain all of the essential amino acids, vitamins B and minerals. Moringa oleifera leaves extract (MOLE) was added with different concentrations (4, 8 and 12% v/v) to growth medium to study the growth of probiotic bacteria before microencapsulation. The highest probiotic growth was recorded with 8% (v/v) MOLE. The effect of microencapsulation of studied probiotic bacteria with 8% (v/v) Moringa oleifera leaves extract (MOLE) on the changes in survival rate during exposure to artificial gastrointestinal conditions was studied. Non-encapsulated cells were significantly destroyed when exposed to low pH (2) or high taurocholic acid (3%). Encapsulated cells with 8% (v/v) MOLE exhibited higher resistance to artificial gastrointestinal conditions than encapsulated cells without MOLE. Lb. jonsonii and B. adolescentis encapsulated 8% MOLE showed the highest acid-bile tolerant and their morphology were investigated by transmission electron microscopy(TEM).The microencapsulation with 8% (v/v) MOLE effectively protected the microorganisms from artificial gastrointestinal conditions.

9(2):86-94, WORLD JOURNAL OF DAIRY & FOOD SCIENCES

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