Authors :
AhmadRahaf; Al haushey Lama
Volume/Issue :
Volume 9 - 2024, Issue 1 - January
Google Scholar :
http://tinyurl.com/5hc62aej
Scribd :
http://tinyurl.com/yc7mvp89
DOI :
https://doi.org/10.5281/zenodo.10853091
Abstract :
Ascorbic acid or Vitamin C (Vit C) is sensitive
to oxidation process therefore, its formulation should
take its sensibility into consideration for assuring
maximum stability.The objective of this work was to
stabilize (Vit C) in aqueous solutions by modifying the
concentration of Vit C and by the addition of different
antioxidant: metabisulfite Na (MBS), hydroquinone
(HQ) and vitamin E (Vit E). Kinetic of Vit C degradation
was estimated by determining reaction order, rate
constants and by calculating shelf lives (t90). The results
showed that shelf life of Vit C was enhanced when a
higher concentration of Vit C was used (15 days vs. ≈10
days at low concentration). Use of MBS and HQ (both at
concentrations: 0.25 and 0.5%) increased Vit C shelf life
(≈21, 29 days for MBS and 18, 20 days for HQ).
However, lower shelf lives were reported when Vit E (at
two concentrations 0.25 and 0.5%) was used.
Keywords :
Vitamin, Shelf Life, Stability, Antioxidant.
Ascorbic acid or Vitamin C (Vit C) is sensitive
to oxidation process therefore, its formulation should
take its sensibility into consideration for assuring
maximum stability.The objective of this work was to
stabilize (Vit C) in aqueous solutions by modifying the
concentration of Vit C and by the addition of different
antioxidant: metabisulfite Na (MBS), hydroquinone
(HQ) and vitamin E (Vit E). Kinetic of Vit C degradation
was estimated by determining reaction order, rate
constants and by calculating shelf lives (t90). The results
showed that shelf life of Vit C was enhanced when a
higher concentration of Vit C was used (15 days vs. ≈10
days at low concentration). Use of MBS and HQ (both at
concentrations: 0.25 and 0.5%) increased Vit C shelf life
(≈21, 29 days for MBS and 18, 20 days for HQ).
However, lower shelf lives were reported when Vit E (at
two concentrations 0.25 and 0.5%) was used.
Keywords :
Vitamin, Shelf Life, Stability, Antioxidant.
