ABSTRACT
Instant zobo was
produced from H. sabdariffa calyces (roselle) which were spiced with ginger and
cloves, packaged with porous paper packs and heat-sealed for easy usage. for
easy usage. Analysis was carried out on them. These analysis includes proximate
analysis which showed high ash content of 12.10, high crude protein content of
3.06, moisture 18.75, fat 2.05, carbohydrate 81.77 and calories (food energy)
356.77 all in percentage. Physiochemical parameters checked includes colour absorbance
which showed a slight deterioration which can be negligible, pH which continued
increasing at a slow pace from 3.56 — 3.86, titratable acidity which showed a
downward trend and the total soluble solids and refractive index (density)
which continued increasing gradually throughout the storage period. The colour
determination analysis done using a uv spectrophotometer weekly showed that the
instant zobo samples has a high intensity of radiation which caused an increase
in the colour concentration as absorbance increases also. This resulted to a
linear interrelationship between the absorbance and concentration of the colour
of the instant zobo sample. The statistical analysis of the organoleptic
properties of the packaged instant zobo samples dipped in cold water, dipped in
hot water at 100°c and the control which was made from boiled roselle calyces
with ginger and cloves showed significant differences at 0.05 level of
significance within each attributes checked which are flavour, colour, taste,
appearance (residue or no residue) and general acceptance.
AGUWA, I (2021). The Production And Evaluation Of Hibiscus Sabdariffa (Roselle) Calyx. Repository.mouau.edu.ng: Retrieved Nov 24, 2024, from https://repository.mouau.edu.ng/work/view/the-production-and-evaluation-of-hibiscus-sabdariffa-roselle-calyx-7-2
IJEOMA, AGUWA. "The Production And Evaluation Of Hibiscus Sabdariffa (Roselle) Calyx" Repository.mouau.edu.ng. Repository.mouau.edu.ng, 11 Nov. 2021, https://repository.mouau.edu.ng/work/view/the-production-and-evaluation-of-hibiscus-sabdariffa-roselle-calyx-7-2. Accessed 24 Nov. 2024.
IJEOMA, AGUWA. "The Production And Evaluation Of Hibiscus Sabdariffa (Roselle) Calyx". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 11 Nov. 2021. Web. 24 Nov. 2024. < https://repository.mouau.edu.ng/work/view/the-production-and-evaluation-of-hibiscus-sabdariffa-roselle-calyx-7-2 >.
IJEOMA, AGUWA. "The Production And Evaluation Of Hibiscus Sabdariffa (Roselle) Calyx" Repository.mouau.edu.ng (2021). Accessed 24 Nov. 2024. https://repository.mouau.edu.ng/work/view/the-production-and-evaluation-of-hibiscus-sabdariffa-roselle-calyx-7-2