Proximate and Phytochemical composition and antioxidant properties of indigenous landraces of omani fenugreek seeds.

Abstract

Background: Fenugreek (Trigonella foenum graecum L) is receiving global attention as a functional food due to its unique nutritional and medicinal properties as anti-diabetic, hypocholesterolemic, antipyretic, anti-carcinogenic and seasoning and flavoring agent. Materials and Methods: Seeds of indigenous fenugreek accessions were collected from three different ecological regions (Al-Dakhaliyah, AlDhahirah, and Al-Batinah) of Sultanate of Oman. The samples were analyzed for proximate chemical composition, phytochemical contents and antioxidant properties. Results: Only significant (P<0.05) differences were observed in the crude fiber and gross energy values of fenugreek seeds collected from different regions of Oman. The highest crude fiber content (8.6 %) was observed in samples collected from Al-Dhahirah region whereas the lowest value (7.1%) was found in samples collected from Al-Dakhaliyah region. No significant (P<0.05) differences were however observed in the moisture, crude protein, crude fat, and ash contents of samples collected from the three regions of Oman. The regional variability significantly (P<0.05) affected the phytochemicals composition and the highest amount of total phenolics (139.2 mg GAE/100g) were recorded in samples collected from Al-Batinah, followed by Al-Dhakhliyah (130.0 mg GAE/100g) and Al-Dhahirah (127.8 mg GAE/100g) regions, respectively. A significant correlation was also observed between the total phenolic contents and the antioxidant properties of fenugreek seeds as determined by reducing power potential (FRAP). Conclusion: Indigenous landraces of Omani fenugreek seeds are a rich source of protein, dietary fiber, and many important bioactive components, which were found to be significantly correlated with its antioxidant properties.

Evaluation of Proximate, Phytochemical, and Heavy Metal Content in Black Cumin and Fenugreek Cultivated in Gamo Zone, Ethiopia

“…When the moisture content values of black cumin and fenugreek were compared, at the 0.05 level, the means were significantly different (p = 0:01239, which implies p < 0:05). The moisture content of fenugreek (6:299 ± 0:349) in this study was smaller than the literature mean value (7.54) reported by [29] studied in Ethiopia and lower than the literature mean value (8:1 ± 0:3) reported by [30] studied in Ethiopia. This may be due to differences of concentration of minerals in cultivation area soil and climatic condition.…”

Nutritional Potential of Fenugreek Supplemented Bread With Special Reference to Antioxidant Profiling

“…Fenugreek extract had polyphenols (9.47 mg GAE/g dry seeds) as major antioxidants (Dua et al, 2013) and antioxidant activity directly related with polyphenol content of fenugreek (Naidu et al, 2012). Similarly, total phenolic content in different fenugreek varieties were observed 127.8 to 139.2 mg GAE/100g (Ali et al, 2015). Flavonoids are diverse group of polyphenolic components with exceptional strength to act as free radical scavenger, anti-inflammatory and antibacterial agent (Premanath et al, 2011).…”

Investigation of the Allelopathic Potential of <i>Nephrolepis cordifolia</i> (L.) C. Presl against Dicotyledonous and Monocotyledonous Plant Species

“…A commonly used extraction solvent to isolate bioactive substances, including phenolic, flavonoid, alkaloid, and terpenoid compounds, which have been reported to possess allelopathic activity, is mostly a high polarity solvent (Ali et al, 2015). Notably, many researchers recommended ethyl acetate as a suitable solvent that is effective in extracting alkaloid, aglycon, sterol, terpenoid, flavonoid, and glycoside compounds (Houghton and Raman, 1998;Cowan, 1999).…”