Recovery of Orange Peel Essential Oil from ‘Sai-Namphaung’ Tangerine Fruit Drop Biomass and Its Potential Use as Citrus Fruit Postharvest Diseases Control

Pattarapol Khamsaw, Chompunut Lumsangkul, Anuruddha Karunarathna, Nuttacha Eva Onsa, Sawaeng Kawichai, Bajaree Chuttong and Sarana Rose Sommano
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Pattarapol Khamsaw: Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
Chompunut Lumsangkul: Department of Animal and Aquatic Science, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
Anuruddha Karunarathna: Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
Nuttacha Eva Onsa: Plant Bioactive Compound Laboratory, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
Sawaeng Kawichai: Research Institute for Health Sciences (RIHES), Chiang Mai University, Chiang Mai 50200, Thailand
Bajaree Chuttong: Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
Sarana Rose Sommano: Plant Bioactive Compound Laboratory, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand

Agriculture, 2022, vol. 12, issue 5, 1-15

Abstract: In this study, we assessed the quality of essential oil recovered from fruit drop biomass and assessed its usefulness in preventing postharvest diseases in the tangerine ‘Sai-Namphaung’. Greening was the primary cause of the fruit drop, based on the enduring symptoms and occurrence of the disease in the area. Limonene, together with the presence of β-pinene and linalool, was discovered to be prevalent in essential oils of tangerine fruit peel, particularly that of ‘Sai-Namphaung’. Through isolation of citrus postharvest fungi, we were able to identify four genera which were later DNA sequenced using Internal Transcribed Spacer: ITS and subjected to Basic Local Alignment Search Tool (BLAST), with a high possibility (>98% similarity) of being Penicillium digitatum , Colletotrichum gloeosporioides , Fusarium sarcochrum and Geotrichum candidum . Essential oil from ‘Sai-Namphaung’ and ‘Fremont’ peel biomass positively inhibited green mold rot and citrus anthracnose caused by P. digitatum , C. gloeosporiodes , but were less effective than the commercial citrus oil and Zanthoxylum myriacanthum oil. This is the first evidence of ‘Sai-Namphaung’ postharvest diseases caused by these two fungi and their controls using citrus essential oil.

Keywords: antifungal; citrus greening; green mold rot; limonene; Penicillium digitatum (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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