Assessment of Ascorbic Acid and Some Minerals from the White Table Grapes (Vitis vinifera L.) Collected from Various Markets of District Khairpur

Authors

  • ASLAM KHAN Institute of Chemistry, Shah Abdul Latif University Khairpur
  • GHULAM QADIR SHAR Institute of Chemistry, Shah Abdul Latif University Khairpur
  • ABDUL RAHEEM SHAR Government Degree College, Thari Mirwah
  • RABIA PARVEEN MEMON Institute of Chemistry, Shah Abdul Latif University Khairpur
  • ATTA HUSSAIN RIND Government Degree College, Thari Mirwah
  • SAHIB GHANGHRO Institute of Chemistry, Shah Abdul Latif University Khairpur

DOI:

https://doi.org/10.26692/surj-ss.v56i02.7460

Keywords:

Moisture, Vitamin C, minerals and Atomic absorption.

Abstract

The current study examines the physical and chemical composition of white grapes collected from various local markets of district Khairpur. The samples from 10 towns i.e., Hingorja, Khairpur, Thari Mirwah, Sobhodero, Kotdiji, Setharja, Kumb, Ranipur, Gambat, and Suigas. were collected and labeled as G1 to G10 respectively. The samples were analyzed for Physical parameters (pH & Moisture) and chemical parameters (Vitamin C, potassium, magnesium, sodium, calcium and iron) by standard methods. The pH was observed in the range of 3.80 to 4.40 while the moisture was observed as 76.70% to 81.30% in grapes collected from different markets of study area. The range of Vitamin – C collected from samples was observed as 5.23 - 6.82. UV-Visible spectrophotometer was used to measure the concentration of Vitamin C and Atomic absorption spectrophotometer was used to determine the concentration of metals. The range of selected minerals measured was found as, K+ (33.47 mg/kg - 38.46 mg/kg), Mg2+ (73.87 mg/kg - 78.26 mg/kg), Na+ (24.23 mg/kg - 27.78 mg/kg), Ca2+ (45.98 mg/kg - 50.23 mg/kg) and Fe3+ (2.88 mg/kg - 4.24 mg/kg). Concentration order of chemical parameters was found as, Magnesium > Calcium > Potassium > Sodium > Vitamin C > Iron. The highest concentrations of Vitamin C, Mg and Fe measured in samples were collected from Kumb town. The higher concentration of K+ and Ca2+ were found from samples of Gambat, while higher Na content was found from samples of Ranipur. Therefore, current work may provide valuable information to diet conscious and nutritionists to remove vitamin C and mineral deficiency in their diet.

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Published

2025-05-07

How to Cite

ASLAM KHAN, GHULAM QADIR SHAR, ABDUL RAHEEM SHAR, RABIA PARVEEN MEMON, ATTA HUSSAIN RIND, & SAHIB GHANGHRO. (2025). Assessment of Ascorbic Acid and Some Minerals from the White Table Grapes (Vitis vinifera L.) Collected from Various Markets of District Khairpur. Sindh University Research Journal - SURJ (Science Series), 56(02), 20–28. https://doi.org/10.26692/surj-ss.v56i02.7460