ORGANIC ACIDS, SUGARS, PHENOLIC COMPOUNDS AND ANTIOXIDANT ACTIVITY OF Malus floribunda coccinella FRUIT, PEEL AND FLESH

Abstract

Malus floribunda coccinella is a landscape tree that is generally planted for its pinky flowers and small reddish fruits. The red-fleshed fruits, called crab apples, are rich in anthocyanins and are assumed as an environmental pollution material during the fruit bearing season. The aims of this research were to determine the organic acids, sugars, sugar:acid ratio, color, phenolic compounds and antioxidant activity of the fruit and also to identify the phenolic compounds, monomeric anthocyanins content and antioxidant activities in the peel, flesh and whole fruit. Malic acid (25.394 g kg-1 FW) was the main organic acid of the fruit. In fruits, amounts of sucrose, glucose and fructose were found to be 0.497, 0.504 and 4.334 g 100 g-1 FW, respectively. Highest total phenolic concentration and antioxidant activity values were observed in the peel among the fractions, while protocatechuic and cinnamic acids, rutin, isorhamnetin-3-glucoside, quercetin, procyanidin B1, (+)-catechin and cyanidin-3-galactoside were predominant phenolics of the peel. Highest amounts of chlorogenic acid and (-)-epicatechin were determined in the flesh. Cyanidin-3-galactoside concentration in the flesh was approximately half the amount of that in the peel.

Application of ultrasound to extend the shelf life of shalgam juice: Changes in various physicochemical, nutritional, and microbiological properties

“…Sulfuric acid solution (0.005 N) with a flow rate of 0.6 ml/min was used as the mobile phase. Organic acids and ethyl alcohol were detected at a diode array detector at 210 nm and refractive index detector, respectively (Coklar et al, 2018).…”

Enhancement of Strawberry Marmalade with Crab Apple (Malus floribunda) Anthocyanins

“…The extraction procedures applied in Coklar et al (2018) were modified. A 5 g of marmalade was weighed and extracted with 10 mL of methanol and by using an ultrasonic water bath (Elma, Transsonic TI-H-10, Singen, Germany) at 35 kHz frequency and 50% power for 30 minutes at 30℃ for TPC and antioxidant activity analyses.…”

“…It has been stated in studies that wild apple varieties (MF) should be evaluated in food and beverages for reasons such as containing bioactive components (vitamin C, dietary fiber, antioxidants etc.) and attractive color (Yoshizawa et al, 2004;Coklar et al, 2018). There is no literature information on the use of crab apples selected for the study as an anthocyanin source in food products.…”

“…In this study, it was aimed to evaluate the intense red colored crab apple (Malus floribunda) fruit, whose peel and flesh contain abundant phenolic compounds (Coklar et al, 2018), as an anthocyanin source. The produced crab apple juice concentrate (70 ºBrix) was added to the strawberry marmalade samples during production.…”

Biopotential of Underutilized Rosaceae Inflorescences: LC-DAD-MS Phytochemical Profiles Associated with Antioxidant, Antidiabetic, Anti-Inflammatory and Antiproliferative Activity In Vitro

“…Mf had a significantly higher concentration of total identified flavonols and procyanidins than other samples, at 21.60 ± 0.16 mg/g DW and 35.73 ± 0.66 mg/g DW, respectively (Table 1). It had far more chlorogenic acid than its whole fruit, flesh or peel [26]. Chalcones were identified in Mf and Mp only, in total concentrations of 6.80 ± 0.24 mg/g DW and 5.61 ± 0.28 mg/g DW, respectively (Table 1).…”