Spectrophotometric Determination of Ascorbic Acid in Aqueous Solutions

Fadhel, Dhuha Hashem

doi:10.22401/jnus.15.3.13

Cited by 11 publications

(7 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To study the merging zone in the determination of ascorbic acid during flow injection analysis, it is important to evaluate the concentration of ascorbic acid using more than three solutions and spectrophotometry. A range of studies (Fadhel 2012;Revanasiddappa and Veena 2008;Janićijević 2012;Permanganate 2018b;Al-anbakey 2018;Silver et al 1986;Desai 2019;Sultan and Hassan 2009) related to the determinations of ascorbic acid used spectrophotometer as a detector. These studies report that the first step is based on the oxidation of ascorbic acid into dehydroascorbic acid using different materials.…”

Section: Introductionmentioning

confidence: 99%

“…These studies report that the first step is based on the oxidation of ascorbic acid into dehydroascorbic acid using different materials. For example, bromine water (Janićijević 2012;Desai 2019), potassium permanganate (Sultan and Hassan 2009;Permanganate 2018b;Fadhel 2012), dichromate (Fadhel 2012) (Revanasiddappa and Veena 2008), Se(IV) in an acid medium (HCl 2M/1ml) (Revanasiddappa and Veena 2008), and mixing of [FeNH4(SO4)2. 12H2O]and K3Fe(CN)6 around 2.5ml (100 μg/mL) and 3ml(100 μg/mL), respectively, in an acid solution of HCl-pH=4 (Al-anbakey 2018), and by mixing FeCl3 with methanol and low acid HCl (Silver et al 1986).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Four Injection–Single Detector Merging Zone Continues Flow Injection Analysis for Determination of Ascorbic Acid in Bell and Chili Peppers

Y.H¹,

S.B²

2021

Conference Proceedings of the 2nd International Conference on Agriculture, Food Security and Safety

View full text Add to dashboard Cite

Vitamin C can improve the immune system and cause chronic inflammatory diseases. A significant proportion of ascorbic acid can be obtained from fruits, vegetables, and food products. The selection of bell and chili pepper samples was made according to increasing use at the present time due to Coronavirus in 2019 and 2020. This paper deals with a merging zone (MZ based on four-hand mead injection/single detection using a spectrophotometer. Merging zone (MZ) systems resulting from different reactions via flow injection analysis (FIJ) would be beneficial for identifying the simultaneous reaction faster and at a lower cost. Specifically, the MZ area and ferroin complex resulting from the reaction between Fe (III), ascorbic acid (AA), and 1,10-Phenanthroline under acetic acid conditions. The system of the MZ system was modelled under continuous FIJ and determination of AA. The method performed AA at a range of (110-3 - 3210-3L), with a correlation coefficient of 0.9822 and DL 12.5ng. The obtained results from bell and chili peppers show excellent agreement with the results from the SCI ̈O analysis.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Four Injection–Single Detector Merging Zone Continues Flow Injection Analysis for Determination of Ascorbic Acid in Bell and Chili Peppers

Y.H¹,

S.B²

2021

Conference Proceedings of the 2nd International Conference on Agriculture, Food Security and Safety

View full text Add to dashboard Cite

show abstract

“…Present-day, different techniques of analysis are applied to estimate the vitamin C content in both the fresh fruit and fruit-based beverages commercially. Ultraviolet (UV) spectroscopy [3][4][5], High-performance liquid chromatography [6][7][8][9][10], capillary zone electrophoresis [11], voltammetry [12], etc. were proposed to determine vitamin C in the juices and related products.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Analysis of Vitamin-C Concentration in Commercial Fruit Juices and Fresh Fruits of Nepal With Effect of Temperature

Sharma

Sapkota

khanal

et al. 2019

Int J Pharm Pharm Sci

View full text Add to dashboard Cite

Objective: It was aimed to determine the best storage temperature for fruits to achieve the highest quality of vitamin-C and to compare vitamin C concentration between commercial fruits juices and fresh fruit juices in by using Spectrophotometry and Titrimetric method Methods: Titration involved the redox reaction between iodine and vitamin C. As the iodine was added during the titration, the ascorbic acid was oxidized to dehydroascorbic acid, while the iodine was reduced to iodide ions. The Spectrophotometric method involved the coupling reaction of 2,4 dinitrophenylhydrazine (DNPH) dye with Vitamin C. The samples were analyzed using UV-Vis-Spectrophotometer at 521 nm. Results: Titrimetric and spectroscopic methods were performed for fresh and marketed fruits comprising of apple, grapes, lemon, orange. The maximum amount was found in lemon and orange whereas apple and grapes contained lesser amount of Vitamin C. The stability of marketed fruit juices made up of apple, grapes, lemon, orange were analyzed by storing them on the freeze at 0 °C and 10 °C and on the hot air oven at 20 °C, 30 °C, 40 °C, 50 °C for 72 h and estimated by both Titrimetric and Spectroscopy method. UV-Spectroscopy method showed that, at freezing condition up to 10 °C temperature, degradation was too low but when the temperature reached 50 °C the extent of degradation was more, showing 24.56% apple juice, 10.89% orange juice,12.70% grapes juice and 50% orange juice were degraded in 100 ml sample. Similar results were observed by analysing the samples with titration technique. Conclusion: A new analytical method was developed to address the content of vitamin C in fruits consumed in the local market of Nepal along with the best possible storage of fruit juice to yield the maximum amount of nutrients.

show abstract

“…Several methods have been developed and utilized to quantify ascorbic acid. Among them is the classic method known as volumetric method which required titration of an oxidant solution to ascorbic acid [15]. There are a variety of oxidant solution such as potassium iodate [16] and bromate [17].…”

Section: Introductionmentioning

confidence: 99%

EXTRACTION AND QUANTITATIVE DETERMINATION OF ASCORBIC ACID FROM BANANA PEEL MUSA ACUMINATA Â€˜KEPOKâ€™

Said

Radzi

Yakub

et al. 2016

IIUMEJ

View full text Add to dashboard Cite

This paper discusses the extraction of an antioxidant compound, which is ascorbic acid or vitamin C, from a banana peel using an ultrasound-assisted extraction (UAE) method. The type of banana used was Musa acuminata also known as â€œPisangKepokâ€ in Malaysia. The investigation includes the effect of solvent/solid ratio (4.5, 5 g and 10 Â ml/g), sonication time (15, 30 and 45 mins) and temperature variation (30 , 45Â and 60oC ) on the extraction of ascorbic acid compounds from the banana peel to determine the best or optimum condition of the operation. Out of all extract samples analyzed by redox titration method using iodine solution, it was found that the highest yield was 0.04939 Â± 0.00080 mg that resulted from an extraction at 30oC for 15 mins with 5 ml/g solvent-to-solute ratio.KEYWORDS:Â Musa acuminata; ultrasound-assisted extraction; vitamin C; redox titration

show abstract

Spectrophotometric Determination of Ascorbic Acid in Aqueous Solutions

Cited by 11 publications

References 16 publications

Four Injection–Single Detector Merging Zone Continues Flow Injection Analysis for Determination of Ascorbic Acid in Bell and Chili Peppers

Four Injection–Single Detector Merging Zone Continues Flow Injection Analysis for Determination of Ascorbic Acid in Bell and Chili Peppers

A Comparative Analysis of Vitamin-C Concentration in Commercial Fruit Juices and Fresh Fruits of Nepal With Effect of Temperature

EXTRACTION AND QUANTITATIVE DETERMINATION OF ASCORBIC ACID FROM BANANA PEEL MUSA ACUMINATA Â€˜KEPOKâ€™

Contact Info

Product

Resources

About