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Abstract Title:

A comparative study of the antacid effect of raw spinach juice and spinach extract in an artificial stomach model.

Abstract Source:

J Complement Integr Med. 2016 Jul 12. Epub 2016 Jul 12. PMID: 27404904

Abstract Author(s):

Vandana Sanjeev Panda, Priyanka Mangesh Shinde

Article Affiliation:

Vandana Sanjeev Panda

Abstract:

BACKGROUND: Spinacia oleracea known as spinach is a green-leafy vegetable consumed by people across the globe. It is reported to possess potent medicinal properties by virtue of its numerous antioxidant phytoconstituents, together termed as the natural antioxidant mixture (NAO). The present study compares the antacid effect of raw spinach juice with an antioxidant-rich methanolic extract of spinach (NAOE) in an artificial stomach model.

METHODS: The pH of NAOE at various concentrations (50, 100 and 200 mg/mL) and its neutralizing effect on artificial gastric acid was determined and compared with that of raw spinach juice, water, the active control sodium bicarbonate (SB) and a marketed antacid preparation ENO. A modified model of Vatier's artificial stomach was used to determine the duration of consistent neutralization of artificial gastric acid for the test compounds. The neutralizing capacity of test compounds was determined in vitro using the classical titration method of Fordtran.

RESULTS: NAOE (50, 100 and 200 mg/mL), spinach juice, SB and ENO showed significantly better acid-neutralizing effect, consistent duration of neutralization and higher antacid capacity when compared with water. Highest antacid activity was demonstrated by ENO and SB followed by spinach juice and NAOE200. Spinach juice exhibited an effect comparable to NAOE (200 mg/mL).

CONCLUSIONS: Thus, it may be concluded that spinach displays significant antacid activity be it in the raw juice form or as an extract in methanol.

Study Type : In Vitro Study

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Sayer Ji
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