Effect of different drying procedures on the bioactive polysaccharide acemannan from  Aloe vera  ( Aloe barbadensis  Miller)

Minjares-Fuentes, Rafael; Rodríguez-González, V.M.; González‐Laredo, Rubén Francisco; Eim, Valeria; González-Centeno, María Reyes; Femenia, Antoni

doi:10.1016/j.carbpol.2017.03.087

Cited by 77 publications

(67 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Acemannan from Aloe vera has been described in the literature as a galactoglucomannan (Minjares-Fuentes et al, 2017) and/or as a glucomannan without galactose branches (Campestrini et al 2013). In this study, using PACE analysis we show that Aloe vera acemannan lacks detectable galactose branches, since digestion with -galactosidase did not release any galactose and is only composed of glucomannan oligosaccharides similar to those described for Konjac glucomannan (Goubet et al 2002).…”

Section: Discussionmentioning

confidence: 99%

“…The polysaccharide is made up of 87% mannose and 13% glucose, indicating that it is a glucomannan (Quezada et al 2017). Although Minjares-Fuentes et al (2017) performed a methylation analysis to determine the glycosidic linkages of the polysaccharide, a reliable analysis, it is unknown if the Aloe vera cultivar that they used was the same as ours. Other variables that can account for the presence or lack of galactose could be the age of the plants, the environmental conditions of the plant cultivation and/or the plant tissue from which the gel is extracted from.…”

Section: Discussionmentioning

confidence: 99%

“…Acemannan is the most abundant polysaccharide of the gel present in the leaf parenchyma cells (Ni et al, 2004), apparently not being a component of the cell walls, even though glucomannans are considered to be hemicellulose-type polysaccharides. This molecule has several medicinal properties, such as acceleration of wound healing, antioxidant and anti-inflammatory effects, prebiotic properties (Quezada et al, 2017) with retardation of colon cancer development, reduction of blood pressure, reduction of blood glucose (glycemia) and improvement of lipid profile in diabetic patients (Sanchez Machado et al, 2017; Minjares-Fuentes et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Expression of a glucomannan mannosyltransferase gene (GMMT) from Aloe vera is induced by water deficit and abscisic acid

Salinas

Aguilar-Salinas

Contreras³

et al. 2018

Preprint

View full text Add to dashboard Cite

Highlight 1 GMMT (a possible CSLA9) from Aloe vera is upregulated during water stress. Aloe 2 vera GMMT expression is also induced by exogenous application of the plant 3 stress hormone abscisic acid (ABA) in non-water-stressed plants. 4 5 3 Summary 6 In Aloe barbadensis Miller (Aloe vera), a xerophytic crassulacean acid metabolism 7 (CAM) plant, the main polysaccharide of the gel present in the leaves is an 8 acetylated glucomannan named acemannan. This polysaccharide is responsible 9for the plant succulence, helping it to retain water. In this study we determined 10 using polysaccharide analysis by carbohydrate gel electrophoresis (PACE) that the 11 acemannan is a glucomannan without galactose side branches. We also 12 investigated the expression of the gene responsible for acemannan backbone 13 synthesis, encoding a glucomannan mannosyltransferase (GMMT). It was found 14 by in silico analyses that the GMMT gene belongs to the cellulose synthase like A 15 type-9 (CSLA9) subfamily. Using RT-qPCR it was found that the expression of 16 GMMT increased in Aloe vera plants subjected to water stress. This expression 17 correlates with an increase of endogenous ABA levels, suggesting that the gene 18 expression could be regulated by ABA. To corroborate this hypothesis, exogenous 19 ABA was applied to non-water-stressed plants, increasing the expression of GMMT 20 significantly 48 h after ABA treatment. 21 22

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Expression of a glucomannan mannosyltransferase gene (GMMT) from Aloe vera is induced by water deficit and abscisic acid

Salinas

Aguilar-Salinas

Contreras³

et al. 2018

Preprint

View full text Add to dashboard Cite

show abstract

“…Refractance Window (RW) drying has been gaining prominence and can be used to dry fruit suspensions, pastes, and pulps, generating films, flakes, or powders with good sensory and nutritional properties as final products (Dchoa-Martínez et al, 2012). RW drying was shown to be a good alternative to traditional methods, since it generates dehydrated products of superior quality with lower processing costs, and therefore with higher added value (Putranto et al, 2010;Zotarelli et al, 2015;Minjares-Fuentes et al, 2017;Quinteros et al, 2018;Dliveira et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Development of a dehydrated product with edible film characteristics from mammee apple (Mammea americana L.) using Refractance Window drying

2020

View full text Add to dashboard Cite

The Mammee apple (Mammea americana L.) is a widely grown fruit, popular in tropical areas, which is mainly consumed fresh. Refractance Window (RW) drying is used to produce food films, flakes, and powders, and may be an alternative to commercially used dry food production methods. The aim of this study was to obtain a dehydrated product from the pulp of mammee apple using RW. The dehydrated product presented a homogeneous microstructure and good mechanical (TS = 1.15 Mpa, %E = 13.93) and technological properties (hygroscopicity = 21.46 g.100 g-1 , water solubility index = 32.73 ± 0.67 g.100 g-1). RW drying was found to be a viable and low-cost method for edible film production, generating products with adequate technological characteristics and high nutritional value. Ots dehydrated products can be consumed directly or used as ingredients in the development of food products.

show abstract

“…Concerning industrial applications of aloe vera, we can cite the work of [2] Among these, the occurrence of acemannan is of particular interest, since it is the major polysaccharide present in aloe vera gel and it is considered to play a significant role in the biological activity of this material, as reported by [35]. Naturally, the dimensions of the leaves increase with time.…”

mentioning

confidence: 99%

The Role Played by the Aging of Aloe Vera on Its Drag Reduction Properties in Turbulent Flows

Soares¹,

Siqueira²,

Leal³

et al. 2018

Preprint

View full text Add to dashboard Cite

Polymeric drag reducers have been developed over many years due to the great number of practical applications. In all of them, the molecular stability is an essential requirement. Usually, polymers break down under turbulent flows, which causes a decrease in their efficiency as drag reducers. Besides that, some specific applications, in agro and biomedical fields, impose a specific requirement that must be fulfilled, which is the use of non-toxic materials. A suitable stable material that is elected to accomplish this necessity is the mucilage of aloe vera, which is a bio-polymer that can be used as an alternative to the synthetic ones. Here, we investigate the role played by the aging of aloe vera on its capacity to reduce drag. The results obtained by 1H nuclear magnetic resonance indicate that the compositions of young and mature leaves of aloe vera are different and such a difference plays an important role on their efficiency as drag reducers. Tests were performed to analyse the drag reduction in a rotating apparatus and in a pipeline system and the efficiencies of leaves of different ages were compared to their composition. The main conclusion of these experiments is that the young mucilage samples, which are richer in complex polysaccharides and exhibit lower acid contents, are more efficient drag reducers.

show abstract

Effect of different drying procedures on the bioactive polysaccharide acemannan from Aloe vera ( Aloe barbadensis Miller)

Cited by 77 publications

References 50 publications

Expression of a glucomannan mannosyltransferase gene (GMMT) from Aloe vera is induced by water deficit and abscisic acid

Expression of a glucomannan mannosyltransferase gene (GMMT) from Aloe vera is induced by water deficit and abscisic acid

Development of a dehydrated product with edible film characteristics from mammee apple (Mammea americana L.) using Refractance Window drying

The Role Played by the Aging of Aloe Vera on Its Drag Reduction Properties in Turbulent Flows

Contact Info

Product

Resources

About