Total phenolic contents and antioxidant activity profile of selected cereal sprouts and grasses

Abstract

Quantitative profiling of total phenolic content (TPC) and antioxidant activity (AOA) in seeds, sprouts, and grasses of corn (Zea mays L.), wheat (Triticum aestivum L.), and barley (Hordeum vulgare L.) were performed. TPC and AOA were strongly correlated and increased with days. Grasses between 10 and 13 days showed the highest TPCs and AOA. The AOA in sprouts and grasses were a fifth and two-thirds of ascorbic acid (AA) standard, respectively, which are higher than in several popular natural antioxidants. Further cell-based studies or in vivo studies could be considered in future to draw more valuable information related to human health.

Profile of chlorophylls and carotenoids of wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) microgreens

“…When the heights of these micro-greens were measured from the base on day 5, wheat micro-greens were 10.57 ± 0.28 cm while barley micro-greens were only 7.68 ± 0.21 cm. In a similar study of wheat and barley grass, delayed growth of barley grass have also been reported, with significant difference on the height of grasses and no significant difference on day 13 (Niroula et al 2019).…”

“…The Chl and Car contents have been reported to be correlated to physiological stage and influence the photosynthetic activity as per the demand of metabolically active cells (Kohler 1944;Samanta et al 2017). Significant positive correlations of total Chl and Car contents have also been reported with total phenolics (Filimon et al 2016;Samanta et al 2017) and total phenolics with antioxidative potential (Benincasa et al 2015;Ozkose et al 2016;Niroula et al 2019). The study of pigments could therefore be a good indication of the photosynthetic and metabolic activity of the plant part, and the content of bioactive compounds that have protection against various diseases like total phenolics and antioxidative potential of the plant part.…”

Phenolic Acid Profiles and Antioxidant Activity of Major Cereal Crops

“…Trehan et al [ 30 ] and Yilmaz [ 34 ] reported that TPC in yellow and white corn ranged between 903–1640 μg GAE/g and 816–948 μg GAE/g dm , respectively. Niroula et al [ 35 ] found in corn the lowest TPC content (985 μg/g dm ) in comparison to wheat (1091 μg/g dm ) and barley (1274 μg/g dm ). Coco and Vinson [ 36 ] in a recent study reported that on average nine commercial popcorn samples contained 2660 μg/g of TPC after in vitro digestion by Folin-Ciocalteu test, and also noted that TPC levels in popcorn samples were similar to those in other studied corn.…”

Multi-step reflux extraction of bio-pharmaceutical phenolic bioactives from balsam apple (Momordica balsamina L.)

“…Their inherent medicinal properties are largely due to the abundance of different groups of bioactive content with remarkable physiological actions on human body. Phenolics constituent is an example of medicinal components found in many medicinal and functional plants with diverse health benefits [4]. This group of compounds is largely responsible for the antioxidant activities of many plant products as reported by Niroula et al [4].…”

“…Phenolics constituent is an example of medicinal components found in many medicinal and functional plants with diverse health benefits [4]. This group of compounds is largely responsible for the antioxidant activities of many plant products as reported by Niroula et al [4]. To, therefore, determine the amount of phenolics compounds inside the plant extracts, the microwave-refluxing is a viable green extraction method for achieving an efficient process [4].…”