Comparative Study Of Ohmic And Conventional Heating Effect On Physicochemical Properties Of Palm Wine (Raphia Hookerl)
ABSTRACT
Palm wine (Raphia hooker!) was
treated with 0.2g, 0.3q, 0.4g, O.5g salt and kept on the shelf for 1pmin and
500m1 of palm wine treated without salt was subjected to Ohmic and conventional
heating for 5, 10, 15 and 20mm. yeast count and temperature were measured for
5mm interval. Ionic strength, titratable acidity, brix level were also
determined during storage. The destruction rate of the conventional heated
samples were higher than the ohmic heated sample and ranged from 0.9344 to
0.692 (X104)cell/ml/min against 0.8393 and O.61889(X104)cell/ml/min for 0.2g
and 0.4g salt respective. Analysis of alcohol content showed that conventional
heated samples had 20.3%, 17.1% while Ohmic heated samples had 14.9%, 11.34%
for 0.2g and 0.5g salt respectively. Brix level, pH and ionic strength
decreased with storage time and titratable acidity increased with storage time.
The sensory evaluation showed that ohmic heated sample without salt retained
their colour than sample heated conventionally without salt. The sample treated
with the different concentration of salt were preferred to those samples
without salt.
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ONYEKWELU, N (2021). Comparative Study Of Ohmic And Conventional Heating Effect On Physicochemical Properties Of Palm Wine (Raphia Hookerl) . Mouau.afribary.org: Retrieved Nov 24, 2024, from https://repository.mouau.edu.ng/work/view/comparative-study-of-ohmic-and-conventional-heating-effect-on-physicochemical-properties-of-palm-wine-raphia-hookerl-7-2
NKEMAKONAM, ONYEKWELU. "Comparative Study Of Ohmic And Conventional Heating Effect On Physicochemical Properties Of Palm Wine (Raphia Hookerl) " Mouau.afribary.org. Mouau.afribary.org, 23 Jul. 2021, https://repository.mouau.edu.ng/work/view/comparative-study-of-ohmic-and-conventional-heating-effect-on-physicochemical-properties-of-palm-wine-raphia-hookerl-7-2. Accessed 24 Nov. 2024.
NKEMAKONAM, ONYEKWELU. "Comparative Study Of Ohmic And Conventional Heating Effect On Physicochemical Properties Of Palm Wine (Raphia Hookerl) ". Mouau.afribary.org, Mouau.afribary.org, 23 Jul. 2021. Web. 24 Nov. 2024. < https://repository.mouau.edu.ng/work/view/comparative-study-of-ohmic-and-conventional-heating-effect-on-physicochemical-properties-of-palm-wine-raphia-hookerl-7-2 >.
NKEMAKONAM, ONYEKWELU. "Comparative Study Of Ohmic And Conventional Heating Effect On Physicochemical Properties Of Palm Wine (Raphia Hookerl) " Mouau.afribary.org (2021). Accessed 24 Nov. 2024. https://repository.mouau.edu.ng/work/view/comparative-study-of-ohmic-and-conventional-heating-effect-on-physicochemical-properties-of-palm-wine-raphia-hookerl-7-2