New analytical methods for the determination of ascorbic acid content in aqueous extracts of flesh, peel and seeds of pumpkin (Cucurbita maxima)
نویسندگان
چکیده
ABSTRACT. The main objective of this research was to develop a simple, rapid, cost-effective, and environmentally friendly methods for determining ascorbic acid in flesh, peel, seeds pumpkin. Ascorbic extracted from the different parts pumpkin water. content three determined using ATR-FTIR UV-VIS methods. method validated determine at 1046 cm-1, results indicated linear range 5 50 g/L; R2, 0.999; LOD, 1.7 LOQ, 5.2 RSD, 0.09% 0.65%, %recovery 95.86%. also 265 nm by that revealed 1 12 mg/L; 0.25 0.75 0.12% 0.43%, 96.96%. Accordingly any two newly developed can easily be applied quantitative determination seeds. Both yielded higher than flesh peel. spectroscopic are green, low cost rapid method. However, showed sensitivity method.
 
 KEY WORDS: Pumpkin, Cucurbita maxima, acid, spectroscopy, spectrophotometry
 Bull. Chem. Soc. Ethiop. 2022, 36(2), 277-290. DOI:https://dx.doi.org/10.4314/bcse.v36i2.3
منابع مشابه
on the comparison of keyword and semantic-context methods of learning new vocabulary meaning
the rationale behind the present study is that particular learning strategies produce more effective results when applied together. the present study tried to investigate the efficiency of the semantic-context strategy alone with a technique called, keyword method. to clarify the point, the current study seeked to find answer to the following question: are the keyword and semantic-context metho...
15 صفحه اولThree new multiflorane-type triterpenes from pumpkin (Cucurbita maxima) seeds.
Three new multiflorane-type triterpenes; 7a-methoxymultiflor-8-ene-3a,29-diol 3-acetate-29-benzoate (1), 7-oxomultiflor-8-ene-3a,29-diol 3-acetate-29-benzoate (2), and multiflora-7,9(11)-diene-3a,29-diol 3-p-hydroxybenzoate-29-benzoate (3), were isolated from seeds of Cucurbita maxima, along with three known compounds. Compound 3 and multiflora-7,9(11)-diene-3a-29-diol 3-benzoate (5) exhibited ...
متن کاملThree new triterpene esters from pumpkin (Cucurbita maxima) seeds.
Three new multiflorane-type triterpene esters, i.e. 7α-hydroxymultiflor-8-ene-3α,29-diol 3-acetate-29-benzoate (1), 7α-methoxymultiflor-8-ene-3α,29-diol 3,29-dibenzoate (2), and 7β-methoxymultiflor-8-ene-3α,29-diol 3,29-dibenzoate (3), were isolated from seeds of Cucurbita maxima, along with the known compound, multiflora-7,9(11)-diene-3α,29-diol 3,29-dibenzoate (4). Compound 1 exhibited melano...
متن کاملAntidepressive Activity of Processed Pumpkin (cucurbita Maxima) Seeds on Rats
The aim of the present study was to determine the anti depressive activity of raw, autoclaved, boiled, germinated and roasted pumpkin seeds powder extract compared with the standard drug: Imipriamine (30 mg/kg) in normal and depressed control rats. Methyl Isobutyl Ketone (100 mg/kg) was used as the depression inducer in rats. The result shows that there was a significant (P < 0.01) decrease in ...
متن کاملthe innovation of a statistical model to estimate dependable rainfall (dr) and develop it for determination and classification of drought and wet years of iran
آب حاصل از بارش منبع تأمین نیازهای بی شمار جانداران به ویژه انسان است و هرگونه کاهش در کم و کیف آن مستقیماً حیات موجودات زنده را تحت تأثیر منفی قرار می دهد. نوسان سال به سال بارش از ویژگی های اساسی و بسیار مهم بارش های سالانه ایران محسوب می شود که آثار زیان بار آن در تمام عرصه های اقتصادی، اجتماعی و حتی سیاسی- امنیتی به نحوی منعکس می شود. چون میزان آب ناشی از بارش یکی از مولفه های اصلی برنامه ...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bulletin of The Chemical Society of Ethiopia
سال: 2022
ISSN: ['1011-3924', '1726-801X']
DOI: https://doi.org/10.4314/bcse.v36i2.3