Cyanoglucosides in the epidermis of Hordeum vulgare

Pourmohseni, H.; Ibenthal, W.-D.; Machinek, Reinhard; Remberg, G.; Wray, Victor

doi:10.1016/0031-9422(93)85506-m

Cited by 27 publications

(10 citation statements)

References 13 publications

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“…Four kinds of cyanogenic glucoside were isolated and identified from methanol extract of young green barley irradiated by natural light, R-LEDs, and RB-LEDs. NMR identified them as: 1) epiheterodendrin, 2) osmaronin, 3) sutherlandin, and 4) epidermin, and this result is almost the same as Pourmohsen's report [19]. These four cyanogenic glucosides corresponded to four cyanogenic glucosides out of 5 that Pourmohseni et al isolated; we were not able to isolate dihydroosmaronin.…”

Section: Isolation and Identification Of Cyanogenic Glucosidessupporting

confidence: 79%

“…Epiheterodendrin (1, 39 mg), osmaronin (2, 31 mg), sutherlandin (3, 39 mg) and epidermin, (4, 33 mg) were obtained from the fractions eluted with 5% -9% methanol. Structures of these compounds were elucidated on the basis of 1 H-NMR (JEOL, 500 MHz) and 13 C-NMR (JEOL, 125MHz) spectral data and compared with literature values [14,19].…”

Section: Extraction and Isolation Of Cyanogenic Glucosidesmentioning

confidence: 99%

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The effect of photo-irradiation on the growth and ingredient composition of young green barley (<i>Hordeum vulgare</i>)

Koga¹,

Meng²,

Nakamura³

et al. 2013

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We clarified that photo-irradiation of young green barley from three different light sources, natural light, 100% red light-emitting diodes (R-LEDs), and a mixture of 90% red-LEDs + 10% blue-LEDs (RB-LEDs), had significantly different results in growth degree (weight and height) and in components of young green barley. Barley that has sprouted for 15 days after germination did not show any apparent difference in height in response to irradiation by the three tested light sources, but by the 20 th day of sprouting the height showed a positive effect by R-LEDs irradiation. By 15 days of sprouting the barley had achieved the heaviest weight by natural light irradiation, while the barley irradiated by R-LEDs had made remarkable progress at 20 days of sprouting. On the other hand, the irradiation by RB-LEDs showed a suppressive tendency after 15 days or more. The amino acid content, as indicated by dry weight conversion, was greatest in the barley irradiated by RB-LEDs, followed by R-LEDs, and natural light, which showed that LEDs irradiation is effective. In addition, four cyanogenic glucosides were isolated, identified, and quantified, as they are components frequently assessed in barley research. With regard to vitamin E, R-LEDs irradiation increased γ-tocopherol. Our results indicate that irradiation by LEDs would be effective for the enhancement of the functionality of young green barley.

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Section: Isolation and Identification Of Cyanogenic Glucosidessupporting

confidence: 79%

Section: Extraction and Isolation Of Cyanogenic Glucosidesmentioning

confidence: 99%

The effect of photo-irradiation on the growth and ingredient composition of young green barley (<i>Hordeum vulgare</i>)

Koga¹,

Meng²,

Nakamura³

et al. 2013

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“…In the present study, the CG content was measured in young green barley that was grown under three sources of light. Four kinds of CGs were isolated and identified, however, dihydroosmaronin, which was identified by Poumohseni et al, was not isolated in this study [18]. The amount of total CG can be shown as follows; LED-RGB > ASL > LED-RB, and the epidermin content in the plant under ASL irradiation was as low as 3.7%.…”

Section: Discussioncontrasting

confidence: 52%

Effects of Irradiation with Light of Different Photon Densities on the Growth of Young Green Barley Plants

Meng¹,

Nakamura²,

Irino³

et al. 2015

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In recent years, young green barley has been increasingly used as a functional food ingredient. Studies have shown that cultivated young green barley has different levels of amino acids, vitamin C, and polyphenol content depending on the harvest time. Furthermore, some studies have investigated the effect of the growing conditions on cultivated barley in particular the use of light-emitting diodes (LED). Young green barley was exposed to three light sources of different wavelengths (sun light [ASL], light-emitting diode [LED] − Red 9 + Blue 1 [LED-R9:B1], LED − Red 4 + Green 1+ Blue 1 [LED-R4: G1:B1]). Under light with photon densities of 200 μmol mL −2 ·s −1 , the dry weight of young green barley was not affected, while the differences were observed in the morphology of the underground portion of the plant (roots) depending on the light source. The roots of the plant grown in ASL weighed twice as much as those that were grown under LED irradiation. Furthermore, LED irradiation caused an increase in the amino acid content in plants; the amino acid content of plants grown under LED-R9:B1 was twice as much as that grown under ASL irradiation. Four kinds of cyanogenic glucosides (CGs) were isolated, identified, and their levels were measured. The plant grown under LED-RGB irradiation, including LED-G, produced approximately 20% more CGs as compared to the plants grown under the other two light sources. Thus, it was inferred that young green barley exhibited a stress response under LED-G light and accumulated CGs in the stems and leaves with prepare for any damage that may occur on the leaf surface. The nitrogen (N) content in the root was the lowest, while the CG content was the highest in the plant grown under LED-RGB irradiation. It is inferred that the N content decreased because N was eliminated from the roots to allow for accumulation of CGs response to stress. In general, the growth experiments to use an irradiation condition in which the distance between the light source and plant floor is * Corresponding author.T. X. Meng et al. 209fixed. It is not clear whether the photon density level received by the top leaves is fixed according to plant growth, by changing the height of plant growing shelf. Therefore, against this background, when the photon density was increased from 200 to 300 μmol mL −2 ·s −1 under ASL irradiation, only a minimal change was observed in the root weight, while the weight of the part of the plant above the ground surface (stems and leaves) increased by approximately 30%, with a 10% increase in the amino acid content.

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“…In the plant kingdom, it has been reported from Hordeum vulgare (Gramineae) (Pourmohseni et al, 1993) and Rhodotypos scandens (Rosaceae) (Lechtenberg et al, 1996).…”

Section: Chemotaxonomic Significancementioning

confidence: 99%

Chemical constituents of Cardiospermum corindum L. and their distribution in Sapindaceae

Silva

Moreno

Braz-Filho

et al. 2014

Biochemical Systematics and Ecology

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a b s t r a c tPhytochemical investigation on the aerial parts of Cardiospermum corindum L. led to the isolation of two triterpenes [friedelin (1) and friedelinol (2)], two coumarins, [umbelliferone (4) and scopoletin (5)], three methoxylated flavones [umuhengerin (3), luteolin 3',4'-dimethyl ether (6) and chrysoeriol (7)], one non-cyanogenic glucoside [epidermin (8)] and one cyclitol [(L)-quebrachitol (9)]. To our knowledge, 2, 3, 6 and 8 were isolated for the first time within Sapindaceae. Of these classes of metabolites, the distribution of methoxylated flavonoids in Cardiospermum is reviewed, including the new records, indicating that polymethoxylated flavonoid (3) may be value as chemotaxonomic markers for this genus.

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Cyanoglucosides in the epidermis of Hordeum vulgare

Cited by 27 publications

References 13 publications

The effect of photo-irradiation on the growth and ingredient composition of young green barley (<i>Hordeum vulgare</i>)

The effect of photo-irradiation on the growth and ingredient composition of young green barley (<i>Hordeum vulgare</i>)

Effects of Irradiation with Light of Different Photon Densities on the Growth of Young Green Barley Plants

Chemical constituents of Cardiospermum corindum L. and their distribution in Sapindaceae

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Cyanoglucosides in the epidermis of Hordeum vulgare

Cited by 27 publications

References 13 publications

The effect of photo-irradiation on the growth and ingredient composition of young green barley (&lt;i&gt;Hordeum vulgare&lt;/i&gt;)

The effect of photo-irradiation on the growth and ingredient composition of young green barley (&lt;i&gt;Hordeum vulgare&lt;/i&gt;)

Effects of Irradiation with Light of Different Photon Densities on the Growth of Young Green Barley Plants

Chemical constituents of Cardiospermum corindum L. and their distribution in Sapindaceae

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The effect of photo-irradiation on the growth and ingredient composition of young green barley (<i>Hordeum vulgare</i>)

The effect of photo-irradiation on the growth and ingredient composition of young green barley (<i>Hordeum vulgare</i>)