Health and taste related compounds in strawberries under various irrigation regimes and bio-stimulant application

• Published in: Food chemistry Vol. 263; pp. 67 - 73
• Main Authors: Kapur, Burcak, Sarıdaş, Mehmet Ali, Çeliktopuz, Eser, Kafkas, Ebru, Paydaş Kargı, Sevgi
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 15.10.2018
• Subjects: Agricultural Irrigation - methods; Antioxidant; Antioxidants - analysis; Carbohydrates - analysis; Deficit irrigation; Eating quality; Flavonoids - analysis; Food Quality; Fragaria - chemistry; Fructose - analysis; Fruit - chemistry; Humans; Phenol; Phenols - analysis; Quercetin - analysis; Seaweed - chemistry; Seaweed extract; Species Specificity; Sucrose - analysis; Taste; Seaweed extract; Phenol; Deficit irrigation; Antioxidant; Eating quality
• ISSN: 0308-8146; 1873-7072
• DOI: 10.1016/j.foodchem.2018.04.108

•Rubygem is more acceptable due to higher sugar and lower acid content than Kabarla.•The bio-stimulant contributed taste and health-related compound (such as quercetin).•Irrigation regime wasn’t effective on taste and health-related compounds.•Deficit irrigations increased significantly soluble solid and antioxidant activity.•The results are valuable for sustainable agriculture suffering from dense production. Strawberry has a unique status within the fruit species in terms of health and taste related compounds. This experimental study concerned the application of a bio-stimulant at various drip irrigation levels (IR125, IR100, IR75 and IR50). The effects of the bio-stimulant (seaweed extract) on the eating quality, i.e., the taste-related (TSS, fructose, glucose, sucrose and citric, malic, l-ascorbic acid), and health-related (antioxidant activity, total phenol, myricetin and quercetin) compounds were studied in two strawberry cultivars. The ‘Rubygem’ with its higher sugar and lower acid content has been more preferable than the ‘Kabarla’ cultivar. The bio-stimulant contributes to taste by improving the TSS, fructose, sucrose and also to health by increasing the quercetin content of the fruit which is associated to the cardiovascular properties and cancer reducing agents. The experiment conducted revealed significant increases only in the TSS contents and antioxidant activity under the IR50 and IR75 deficit irrigation treatments.