The distribution of the phenolic metabolites barbaloin, aloeresin and aloenin as a peripheral defense strategy in the succulent leaf parts of Aloe arborescens

Gutterman, Yitzchak; Chauser-Volfson, Elena

doi:10.1016/s0305-1978(99)00129-5

Cited by 65 publications

(37 citation statements)

References 32 publications

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“…These components are concentrated in the green rind of the leaves and appear to have several activities (e.g. antioxidant, antimicrobial and anti-inflammatory; Gutterman & Chauser-Volfson 2000;Lucini et al 2015). Recently, the activity of the anthraquinones against several cancer cells lines has been reviewed .…”

Section: Introductionmentioning

confidence: 99%

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Administration ofAloe arborescenshomogenate to cattle: interaction with rumen fermentation and gut absorption of aloin

Bani

Grossi

Lucini

et al. 2016

Italian Journal of Animal Science

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Aloe has long been used as a traditional medicine for its numerous beneficial properties, which are mainly ascribed to b-polysaccharides and phenolic compounds including anthraquinones, anthrones and chromones. However, few studies on large animals are currently available. The effect of whole leaf Aloe arborescens homogenate on the in vitro rumen fermentative processes was tested using alfalfa hay and barley meal as substrates. The Aloe homogeneate was added at three different concentrations (0.4, 2.0 and 10.0 g L À1 of fermentation liquid). The same homogenate was dosed (200 g) orally and through the rumen cannula to three rumen cannulated heifers and orally to six lactating dairy cows to measure the rumen degradation of aloin and the transfer of aloin from the gut into the blood, respectively. The Aloe homogenate did not affect in vitro rumen fermentations and feed digestibility. The administration of Aloe homogenate did not negatively affect animal feed intake and health neither on the cannulated heifers nor on the dairy cows. Aloin underwent a rapid degradation in the rumen milieu, and became undetectable 2 h after oral dosage. However, when Aloe homogenate was administered to dairy cows, aloin appeared in blood as early as 2 h after administration, reached a maximum after 4 h (6.2 6 5.8 lg L À1 ) and progressively decreased thereafter. These results suggest that Aloe compounds can be absorbed into the blood and encourage the study of Aloe as a potential nutraceutical in ruminants. Further studies should determine the most effective in vivo dosage. ARTICLE HISTORY

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Section: Introductionmentioning

confidence: 99%

“…whole plant or from some of its components is scanty and only a recent cause of interest (Gutterman & Chauser-Volfson 2000;Beppu et al 2006;Shin et al 2011;Misawa et al 2012). No information is available on the fate of active components from Aloe spp.…”

Section: Introductionmentioning

confidence: 99%

Administration ofAloe arborescenshomogenate to cattle: interaction with rumen fermentation and gut absorption of aloin

Bani

Grossi

Lucini

et al. 2016

Italian Journal of Animal Science

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“…This results indicate that barbaloin have differrent active sites at mast cells. The barbaloin content in different aloe species is higher in young leaves than that in older leaves of aloe species, whereas the terminal third of the leaves has the highest percentages of barbaloin [1] . Barbaloin is C-glucoside of aloe emodin anthrone, found in the outer rind of the aloe plant.…”

Section: Introductionmentioning

confidence: 85%

“…Its highest in the terminal third of the leaf, at its lowest in the basal third; higher in the terminal, adaxial, leaf margin and lower in the basal, abaxial, leaf centre [1] . The distribution of barbaloin, in Aloe arborescens leaves was shown to depend on the leaf part, age, and position of the leaf, as well as on seasonal influences [17] .…”

Section: Effect Of Seasonal Variation On Barbaloin Contentmentioning

confidence: 95%

Barbaloin: A concise report of its pharmacological and analytical aspects

Patel

Tahilyani³

2012

Asian Pacific Journal of Tropical Biomedicine

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“…Em Aloe arborescens, foram reconhecidos metabólitos como aloína A e B, aloe-emodina, 10-hidroxialoina, aloenina (Okamura et al 1996;Park et al 1998), aloesina A e B, microdontina A e B, saponinas (Viljoen et al 2001), homonataloína (Beaumont et al 1984), ácido succínico, lactato de magnésio (Hirata & Suga 1977), isobarbaloína, emodina, ácido aloético (Saito 1993;Beppu et al 2004), compostos aromáticos (Umano et al 1999), aloeresina (Gutterman & Chauser-Volfson 2000) e mucopolissacarídeos (Yagi et al 1986;Stevens 1999). As antraquinonas, aloína e emodina, obtidas a partir da resina localizada em canais abaixo da epiderme das folhas, possuem atividades catártica e laxativa em animais e no homem (Stevens 1999).…”

Section: Introductionunclassified

Potencial fitotóxico de extratos foliares de Aloe arborescens Miller (Asphodelaceae) produzidos em diferentes épocas do ano

2009

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RESUMO -(Análise do potencial fitotóxico de extratos foliares de Aloe arborescens Miller (Asphodelaceae) produzidos em diferentes épocas do ano). Este trabalho visou analisar o potencial fitotóxico de extratos foliares de Aloe arborescens Miller sobre a germinação e crescimento de plântulas de alface (Lactuca sativa L.). Amostras de folhas foram coletadas nas quatro estações climáticas e maceradas em etanol P.A. por 28 dias. Os extratos produzidos foram fracionados em extratos etanólico e clorofórmico e tiveram as concentrações reduzidas a 1%. Os bioensaios de ação fitotóxica foram desenvolvidos em triplicata, sob luz constante e temperatura ambiente. Apenas o extrato clorofórmico de primavera mostrou forte atividade fitotóxica sobre a germinação das sementes de alface (16,67%). Todos os extratos reduziram significativamente a primeira contagem, índice de velocidade germinação (IVG) e o crescimento do eixo hipocótilo-radicular (EHR) das plântulas de alface, porém os extratos clorofórmicos mostraram maior atividade fitotóxica, gerando alterações morfológicas mais intensas sobre as plântulas de alface e apresentaram maiores teores de compostos fenólicos. Apesar de todos os extratos clorofórmicos inibirem fortemente o crescimento das folhas cotiledonares das plântulas de alface, não se observaram neste último efeito, variações em função dos períodos de coleta. Palavras-chave: alelopatia, Aloe, fitotoxicidade, sazonalidade ABSTRACT -(Analysis of the phytotoxic potential of Aloe arborescens Miller leaf extracts (Asphodelaceae) produced at different times of the year). This study aimed to analyze seasonal variation in the phytotoxic potential of Aloe arborescens Miller leaf extract on lettuce (Lactuca sativa L.) germination and growth. Leaf samples were collected in the four seasons and were macerated in ethanol P.A. for 28 days. The extracts were fractionated into solutions made with ethanol and chloroform, and concentrations were reduced to 1%. Phytotoxic activity bioassays were carried out in triplicate, under constant light and ambient temperature. Only the spring chloroform extract showed strong phytotoxic activity on lettuce seed germination (16.67%). All extracts significantly reduced the first count, germination velocity index (GVI) and growth of the hipocotyl-root axis (HRA) of the lettuce plants. However, the chloroform extracts showed greater phytotoxic activity, producing more intense morphology alterations on lettuce plants and showed greater content of phenolic compounds.

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The distribution of the phenolic metabolites barbaloin, aloeresin and aloenin as a peripheral defense strategy in the succulent leaf parts of Aloe arborescens

Cited by 65 publications

References 32 publications

Administration ofAloe arborescenshomogenate to cattle: interaction with rumen fermentation and gut absorption of aloin

Administration ofAloe arborescenshomogenate to cattle: interaction with rumen fermentation and gut absorption of aloin

Barbaloin: A concise report of its pharmacological and analytical aspects

Potencial fitotóxico de extratos foliares de Aloe arborescens Miller (Asphodelaceae) produzidos em diferentes épocas do ano

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