Dried Garcinia atroviridis crude extracts incorporated with gum arabic coating controlled postharvest anthracnose diseases in dragon fruits

Nur Aina Adlan Mustafa, . and Bordoh Paa Kwesi, . and Azhane Ahmad, . Dried Garcinia atroviridis crude extracts incorporated with gum arabic coating controlled postharvest anthracnose diseases in dragon fruits. pp. 1643-1658. ISSN 1511-3701

The aim of this study was to examine the antifungal effect of dried Garcinia atroviridis fruits extract (GAFE) in combination with gum arabic (GA) against red-fleshed dragon fruits (Hylocereus polyrhizus) anthracnose disease caused by Colletotrichum gloeosporioides as well as to determine the efficiency of dried GAFE in maintaining the postharvest quality of dragon fruits. In vitro results showed that the inhibition in mycelial and conidial growth was dose-dependent and greatest inhibition was recorded at 15 mg/mL dried GAFE10 GA. Such concentration also conferred fungistatic effects to fungal growth and spore germination in vitro. Concentration at 10 mg/mL dried GAFE10 GA exhibited similar effectiveness comparable to commercial fungicide (Mancozeb at 3.2 mg/mL) to control anthracnose disease in dragon fruits. In addition fruits treated with 10 mg/mL dried GAFE10 GA markedly suppress disease incidence and severity as well as effectively maintained SSC and TA level throughout cold storage. On the other hand lower dried GAFE concentrations (1 mg/mL and 4 mg/mL dried GAFE10 GA) suppressed weight loss and retained tissue firmness throughout shelf life of dragon fruits. Coating application at highest concentration of 15 mg/mL dried GAFE10 GA impaired physicochemical quality by displaying phytotoxic effect on the dragon fruits.

Full text available from: Official URL: http://www.pertanika.upm.edu.my/Pertanika%20PAPERS...

Abstract

The aim of this study was to examine the antifungal effect of dried Garcinia atroviridis fruits extract (GAFE) in combination with gum arabic (GA) against red-fleshed dragon fruits (Hylocereus polyrhizus) anthracnose disease caused by Colletotrichum gloeosporioides as well as to determine the efficiency of dried GAFE in maintaining the postharvest quality of dragon fruits. In vitro results showed that the inhibition in mycelial and conidial growth was dose-dependent and greatest inhibition was recorded at 15 mg/mL dried GAFE10 GA. Such concentration also conferred fungistatic effects to fungal growth and spore germination in vitro. Concentration at 10 mg/mL dried GAFE10 GA exhibited similar effectiveness comparable to commercial fungicide (Mancozeb at 3.2 mg/mL) to control anthracnose disease in dragon fruits. In addition fruits treated with 10 mg/mL dried GAFE10 GA markedly suppress disease incidence and severity as well as effectively maintained SSC and TA level throughout cold storage. On the other hand lower dried GAFE concentrations (1 mg/mL and 4 mg/mL dried GAFE10 GA) suppressed weight loss and retained tissue firmness throughout shelf life of dragon fruits. Coating application at highest concentration of 15 mg/mL dried GAFE10 GA impaired physicochemical quality by displaying phytotoxic effect on the dragon fruits.

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Item Type:	Article
AGROVOC Term:	Garcinia
AGROVOC Term:	Extracts
AGROVOC Term:	Gum arabic
AGROVOC Term:	Dried fruits
AGROVOC Term:	Hylocereus
AGROVOC Term:	Colletotrichum gloeosporioides
AGROVOC Term:	Phytotoxicity
AGROVOC Term:	Fungal diseases
AGROVOC Term:	Isolation techniques
AGROVOC Term:	Isolation of microorganisms
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:29
URI:	http://webagris.upm.edu.my/id/eprint/24752

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