Cyanogenic glycosides in plants

Francisco, Ilza A.; Pinotti, Maria Helena Pimenta

doi:10.1590/s1516-89132000000500007

Cited by 60 publications

(44 citation statements)

References 7 publications

(13 reference statements)

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“…These metals are functional groups of many enzymes which in turn inhibit processes such as, the reduction of oxygen in the cytochrome respiratory chain, electron chain transport in photosynthesis as well as the acting of enzymes like catalase and oxidase (Francisco & Pinotti, 2000). All 13 plants contained cyanogenic glycoside at 0 minute processing in this study.…”

Section: +mentioning

confidence: 92%

Screening of traditional South African leafy vegetables for specific anti-nutritional factors before and after processing

2017

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This study investigated the effect of processing on anti-nutritional factors of thirteen traditional leafy vegetables collected in Kwa Zulu-Natal, South Africa. The aim was to determine whether processing reduced anti-nutrient levels of leafy vegetables. The vegetables were boiled in a plant-to-distilled water ratio of 1:4 (w/v) at 97 °C for a time period of 5 and 15 min. The vegetables studied were: Amaranthus dubius, Amaranthus hybridus, Asystasia gangetica, Bidens pilosa, Ceratotheca triloba, Chenopodium album, Emex australis, Galinsoga parviflora, Guilleminea densa, Momordica balsamina, Oxygonum sinuatum, Physalis viscosa and Solanum nigrum. From this study, it was determined that non processed samples contained anti-nutrients such as tannins, phytic acid, alkaloids, oxalic acid, and cyanogenic glycoside. Both boiling parameters were effective in reducing the tannin, phytic acid, alkaloid, oxalic acid and cyanogenic glycoside contents of all 13 traditional leafy vegetables. The results of this study provide evidence that the local traditional leafy vegetables which the population is so reliant upon, are important contributors to micronutrient malnutrition in developing countries and can be minimized through common boiling methods for a minimum of 5 and maximum of 15 minutes.

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Section: +mentioning

confidence: 92%

Screening of traditional South African leafy vegetables for specific anti-nutritional factors before and after processing

2017

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“…There are other nitrogenous compounds that can be found in leaves (proteins, secondary compounds, etc.). Species from the Rosaceae family frequently invest N in cyanogenic glycosides, a protective nitrogenous compound (Vetter 2000), and these compounds have been found in tropical Prunus species (Francisco and Pimenta Pinotti 2000;Miller 2004). The production of cyanogenic glycoside differs with leaf age, and although we took great care to only analyze fully grown P. integrifolia leaves, it is possible that irregular nitrogen investments in cyanogenic glycosides explain the V cmax-area (lmol m -2 s -1 ) standardized for the reference temperature of 25°C and N area (g m -2 ) values from this study.…”

Section: Relationships Between Nutrients and Foliar Gas Exchangementioning

confidence: 99%

Photosynthetic parameters, dark respiration and leaf traits in the canopy of a Peruvian tropical montane cloud forest

et al. 2011

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Few data are available describing the photosynthetic parameters of the leaves of tropical montane cloud forests (TMCF). Here, we present a study of photosynthetic leaf traits (V(cmax) and J(max)), foliar dark respiration (R(d)), foliar nitrogen (N) and phosphorus (P), and leaf mass per area (LMA) throughout the canopy for five different TMCF species at 3025 m a.s.l. in Andean Peru. All leaf traits showed a significant relationship with canopy height when expressed on an area basis, and V(cmax-area) and J(max-area) almost halved when descending through the TMCF canopy. When corrected to a common temperature, average V(cmax) and J(max) on a leaf area basis were similar to lowland tropical values, but lower when expressed on a mass basis, because of the higher TMCF LMA values. By contrast, R(d) on an area basis was higher than found in tropical lowland forests at a common temperature, and similar to lowland forests on a mass basis. The TMCF J(max)-V(cmax) relationship was steeper than in other tropical biomes, and we propose that this can be explained by either the light conditions or the relatively low VPD in the studied TMCF. Furthermore, V(cmax) had a significant-though relatively weak and shallow-relationship with N on an area basis, but not with P, which is consistent with the general hypothesis that TMCFs are N rather than P limited. Finally, the observed V(cmax)-N relationship (i.e., maximum photosynthetic nitrogen use efficiency) was distinctly different from those in tropical and temperate regions, probably because the TMCF leaves compensate for reduced Rubisco activity in cool environments.

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“…It has been reported that bamboo shoots can significantly decrease serum total and serum LDL cholesterol in rats and total liver lipids including liver cholesterol by 16 Germaclinium, many nutritious and active materials. Cyanogenic glycosides are nitrogeneous phytoanticipins [8] and are used by various plants as effective defensive mechanism against predators [9]. A mechanisms responsible for the formation of HCN has been formulated by Miller and Conn [10], and it has been found that in most of the species it is the degradation of the cyanogenic glycosides [11] that produces HCN; and the enzyme responsible for this are found out to be â-cyanoalanine synthase (EC 4.4.1.9) which is found in a number of plant species [12] Bamboo shoots contain 0.3 to 0.8% HCN [13,14].…”

Section: Polymorpha B Balcooa Dendrocalamus Hemiltonii D Gigentimentioning

confidence: 99%

Bamboo Shoot Product and Its Biological Investigation

Singh¹,

Singh²,

Nongmaithem³

et al. 2011

IJBBB

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Abstract-This research was carried out to quantify and compare the proximate composition, vitamins (ascorbic acid and riboflavin), fatty acid (saturated, mono-saturated, poly-saturated and trans-fatty acids) and mineral concentration between two types of Soibum, fermented bamboo shoot viz. Kwatha and Andro types. Total cyanogenic glycosides content was estimated in 11 nos. of Soibum samples on monthly interval. Soibum showed a high content of Cyanogenic glycosides in the initial stage which degraded with variable rate from samples to samples during the course of fermentation upto 80-85 % after 15 months of fermentation. Antioxidant activity test in 11 nos. of samples were carried out using DPPH Assay Method. The result show the presence of anti-oxidant activities in the range of 1.23% to 3.23% in all samples tested so far. In conclusion, Soibum was found to be a good nutritive source.

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Cyanogenic glycosides in plants

Abstract: ABSTRACT

Cited by 60 publications

References 7 publications

Screening of traditional South African leafy vegetables for specific anti-nutritional factors before and after processing

Screening of traditional South African leafy vegetables for specific anti-nutritional factors before and after processing

Photosynthetic parameters, dark respiration and leaf traits in the canopy of a Peruvian tropical montane cloud forest

Bamboo Shoot Product and Its Biological Investigation

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