Comparative analysis of three Australian finger lime (Citrus australasica) cultivars: Identification of unique citrus chemotypes and new volatile molecules

Delort, Estelle; Jaquier, Alain; Decorzant, Erik; Chapuis, Christian; Casilli, Alessandro; Frérot, Eric

doi:10.1016/j.phytochem.2014.10.023

Cited by 37 publications

(38 citation statements)

References 15 publications

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“…Correlation between antioxidant activity and aroma compounds exhibited abundance in terpenoid and terpene groups such as limonene, which generally contributes to the fruity smell due to its low odour threshold. Similar with previous studies, limonene was relatively high in finger lime, showing one of the major volatile compounds compared to other terpene groups [2,9,10]. The abundance of terpenes and terpenoids in the fruit samples suggest that they are suitable for processing of the fruits into jam and chutneys or even other food products with pleasant aroma and colour [9].…”

Section: Discussionsupporting

confidence: 87%

Untargeted and Targeted Metabolomic Profiling of Australian Indigenous Fruits

et al. 2020

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Selected Australian native fruits such as Davidson's plum, finger lime and native pepperberry have been reported to demonstrate potent antioxidant activity. However, comprehensive metabolite profiling of these fruits is limited, therefore the compounds responsible are unknown, and further, the compounds of nutritional value in these native fruits are yet to be described. In this study, untargeted and targeted metabolomics were conducted using the three fruits, together with assays to determine their antioxidant activities. The results demonstrate that targeted free and hydrolysed protein amino acids exhibited high amounts of essential amino acids. Similarly, important minerals like potassium were detected in the fruit samples. In antioxidant activity, Davidson's plum reported the highest activity in ferric reducing power (FRAP), finger lime in antioxidant capacity (ABTS), and native pepperberry in free radical scavenging (DPPH) and phosphomolybdenum assay. The compounds responsible for the antioxidant activity were tentatively identified using untargeted GC×GC-TOFMS and UHPLC-QqQ-TOF-MS/MS metabolomics. A clear discrimination into three clusters of fruits was observed using principal component analysis (PCA) and partial least squares (PLS) analysis. The correlation study identified a number of compounds that provide the antioxidant activities. GC×GC-TOFMS detected potent aroma compounds of limonene, furfural, and 1-R-α-pinene. Based on the untargeted and targeted metabolomics, and antioxidant assays, the nutritional potential of these Australian bush fruits is considerable and supports these indigenous fruits in the nutraceutical industry as well as functional ingredients for the food industry, with such outcomes benefiting Indigenous Australian communities.

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Section: Discussionsupporting

confidence: 87%

Untargeted and Targeted Metabolomic Profiling of Australian Indigenous Fruits

et al. 2020

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“…Volatiles contributing to peel oil were very rich in monoterpenes: 82% limonene followed by 6.52% b-myrcene, 2.08% a-pinene, 1.59% elemene isomer, and 0.94% g-elemene (Table 4). The results agreed with previous reports (Delort and Jaquier, 2009;Delort et al, 2015;Lota et al, 2002) that limonene is the dominant component in all cultivars of M. australasica, but each cultivar differed in other specific components. However, Ruberto et al (2000) reported that limonene was found only at a concentration of 1.2% in the peel oil of M. australasica var.…”

Section: Fruit Quality Sensory Traits and Volatile Constituentssupporting

confidence: 93%

Minnie Finger Lime: A New Novelty Citrus Cultivar

Bowman¹,

McCollum²,

Plotto³

et al. 2019

horts

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The major positive attributes of this new citrus scion are the combination of healthy growth in both a pot and the field, abundant production of fruit on very compact trees, and fruit traits that are good and similar to the finger lime (Microcitrus australasica) used as a garnish and accent for gourmet food and beverages. The cultivar can be propagated easily by grafting clean budwood of 'Minnie Finger Lime' onto a standard citrus rootstock cultivar. Origin This citrus scion cultivar originated from a 1997 cross of Microcitrus australasica • Microcitrus inodora (clone 80-527A) made at the USDA A. H. Whitmore Foundation Farm (Groveland, FL) by Dr. Kim D. Bowman of the USDA, ARS, U.S. Horticultural Research Laboratory (USHRL), FL. Hybrid seed from the cross was planted at the Whitmore Foundation Farm in 1997 and grown until the hybrid that became 'Minnie Finger Lime' was selected for further study. Evaluation of 'Minnie Finger Lime' was planned and conducted by Kim Bowman under code no. BS97-R4-15, and later US-1936. Fruit quality traits of the cultivar were also evaluated by Greg McCollum, Anne Plotto, and Jinhe Bai of the USHRL.

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“…The enantiomeric distribution of monoterpenoids in the leaf essential oil was determined using chiral gas chromatography ( Table 2). The d-enantiomer of limonene is the more common, particularly in Citrus oils such as orange [15], lemon [16], mandarin [17], bergamot [18], and Australian finger lime [19]. The predominant enantiomer of limonene in R. anthopogon leaf essential oil as revealed in this study was the l-enantiomer.…”

supporting

confidence: 48%

Chemical Composition, Enantiomeric Distribution, and Biological Activities of Rhododendron anthopogon Leaf Essential Oil from Nepal

Dosoky

Satyal

Pokharel

et al. 2016

Natural Product Communications

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Rhododendron anthopogon D. Don., a small compact Himalayan shrub growing in Nepal, is a known medicinal plant used to treat sore throat, colds, blood disorders, bone disease, potato allergies, and vomiting, and to relieve liver disorders, headaches and back pain. The present study investigated the chemical composition and bioactivities of the leaf essential oil from R. anthopogon from Dhankuta, Nepal. The essential oil from leaves was obtained by hydrodistillation and a detailed chemical analysis was conducted by gas chromatography-mass spectrometry (GC-MS). The enantiomeric distribution of monoterpenoid components was determined using chiral gas chromatography and represents the first chiral examination of R. anthopogon essential oil. The essential oil was screened for antimicrobial activity using the microbroth dilution test, and for cytotoxic activity against MCF-7, MDA-MB-231, and 5637 using the MTT assay. A total of 70 volatile components were identified from the essential oil. The major components were α-pinene (21.5%), δ-cadinene (13.8%), β-pinene (9.5%), limonene (5.9%), δ-amorphene (4.6%), α-muurolene (4.5%), and (E)-caryophyllene (3.2%) with other minor constituents (< 3%). The essential oil showed marginal antibacterial and cytotoxic activities, but no antifungal effects.

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Comparative analysis of three Australian finger lime (Citrus australasica) cultivars: Identification of unique citrus chemotypes and new volatile molecules

Cited by 37 publications

References 15 publications

Untargeted and Targeted Metabolomic Profiling of Australian Indigenous Fruits

Untargeted and Targeted Metabolomic Profiling of Australian Indigenous Fruits

Minnie Finger Lime: A New Novelty Citrus Cultivar

Chemical Composition, Enantiomeric Distribution, and Biological Activities of Rhododendron anthopogon Leaf Essential Oil from Nepal

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