Glycyrrhizin Variability in Subterranean Organs of Sardinian Glycyrrhiza glabra subspecies glabra var. glabra

Usaï, Marianna; Picci, Vincenzo; Atzei, A.

doi:10.1021/np50125a013

Cited by 17 publications

(7 citation statements)

References 14 publications

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“…The glycyrrhizin content of licorice roots and rhizomes increased as they aged (Hayashi et al 1993;Marzi et al 1993a;Usai et al 1995). The higher glycyrrhizin concentration in the roots than the rhizomes in the 1997 harvest in the Lincoln trial confirms previously published pot trial results (De Mastro & Circella 1993;Marzi et al 1993a) and is consistent with the growth of younger rhizomes on an older root structure.…”

Section: Discussionsupporting

confidence: 87%

“…Typically, licorice root contains 2-9% glycyrrhizin (WHO 1999) with an average of 7-10% in the Mediterranean region (Nieman 1957) but with concentrations as high as 15%, depending on variety, age, where the licorice was grown, and when it was harvested (Fenwick et al 1990;Hayashi et al 1998). Glycyrrhizin concentration increases as roots and rhizomes become older and larger in diameter (Hayashi et al 1993;Marzi et al 1993a;Usai et al 1995). Tap roots had higher glycyrrhizin concentrations than rhizomes in pot-grown plants with the relative differences reduced in plants harvested after 3 years instead of 2 (De Mastro & Circella 1993;Marzi et al 1993a).…”

Section: Introductionmentioning

confidence: 99%

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Effect of plant density and depth of harvest on the production and quality of licorice(Glycyrrhiza glabra)root harvested over 3 years

Douglas

Lauren

et al. 2004

New Zealand Journal of Crop and Horticultural Science

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Licorice (Glycyrrhiza glabra) root production was investigated in Central Otago, Canterbury, and Waikato regions of New Zealand over 4 years. Increasing plant populations at establishment had a large effect on production. Maximum root and rhizome production was achieved with plant populations above 24 000 plants/ha. Low plant densities favoured rhizome production and high densities favoured root production. Sampling roots and rhizomes to 900 mm showed that the majority of production was in the top 300 mm. Roots harvested from below 300 mm contained less glycyrrhizin than surface roots. Glycyrrhizin concentration increased each year and surpassed the minimum international standard of 4% in the first harvest in the Waikato but not until the third harvest at South Island sites. By the third harvest both Waikato and Canterbury grown licorice contained similar amounts of glycyrrhizin but with 90% of the glycyrrhizin content in roots in the 0-300 mm soil layer in the Waikato and in the 0-600 mm soil layer in Canterbury. These trials show that licorice can be grown in New Zealand with fresh root and rhizome yields of 17-28 t/ha in the second and third years of production and with a glycyrrhizin content above the minimum international standard.

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Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Effect of plant density and depth of harvest on the production and quality of licorice(Glycyrrhiza glabra)root harvested over 3 years

Douglas

Lauren

et al. 2004

New Zealand Journal of Crop and Horticultural Science

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“…Similar results achieved by Usai et al (1995) and Bolouri Moghaddam et al (2009). On the other hand, annual precipitation showed negative correlation with rhizome diameter.…”

Section: Discussionsupporting

confidence: 86%

Morphological characteristics and molecular identification of a wild Thai isolate of the tropical mushroom Hed Taen Rad (Macrocybe crassa)

Inyod

Sassanarakit

Payapanon³

et al. 2017

Biodiversitas

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Abstract. Rezaei S, Nejadsattari T, Assadi M, Khavarinejad RA, Mehregan I. 2017. Study of glycyrrhizic acid contents from Glycyrrhiza glabra populations in . Glycyrrhizin (glycyrrhizic acid) is an important chemical composition of licorice (Glycyrrhiza glabra L.) from which is 50 times sweeter than sucrose. In this study, the amount of glycyrrhizic acid was determined in populations collected from 11 different locations in Iran (NW to NE) by HPLC method from two varieties of this species; Glycyrrhiza glabra varieties glabra and glandulifera. Our results showed the highest content of glycyrrhizic acid was from Naghadeh (NAQ, NW Iran) population for G. glabra var. glandulifera and Azadshahr population (AZD, NW Iran ) for G. glabra var. glabra. Lowest amounts of glycyrrhizic acid were detected in Jajrood (JAD, N Iran) population for G. glabra var. glandulifera and Hashtrud (HSD, N Iran) population for G. glabra var. glabra. Significant correlations were observed between the amount of glycyrrhizic acid and some morphometric parameters, soil and environmental factors. The amount of glycyrrhizic acid showed positive correlation with phosphorous (P ≤ 0.05 and R 2 = 0.155) and negative correlation with pH (P ≤ 0.01 and R 2 = 0.348) and calcium carbonate (P ≤ 0.01 and R 2 = 0.507). Higher temperature resulted in increasing the amount of glycyrrhizic acid. Based on morphometrical data, the plants with thinner rhizomes would have more glycyrrhizic acid. Our results also showed that glycyrrhizic acid content was not related to taxonomic classification of this species.

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“…These data were within the range of GL contents of G. glabra in the present study (mean 2.39 ± 1.05%, n = 32). Relatively low GL contents between 0.12 and 2.24% were found in Italian G. glabra [26].…”

Section: Glycyrrhizinmentioning

confidence: 88%

Analysis and comparison of Radix Glycyrrhizae (licorice) from Europe and China by capillary-zone electrophoresis (CZE)

Rauchensteiner

Matsumura

Yamamoto

et al. 2005

Journal of Pharmaceutical and Biomedical Analysis

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Glycyrrhizin Variability in Subterranean Organs of Sardinian Glycyrrhiza glabra subspecies glabra var. glabra

Cited by 17 publications

References 14 publications

Effect of plant density and depth of harvest on the production and quality of licorice(Glycyrrhiza glabra)root harvested over 3 years

Effect of plant density and depth of harvest on the production and quality of licorice(Glycyrrhiza glabra)root harvested over 3 years

Morphological characteristics and molecular identification of a wild Thai isolate of the tropical mushroom Hed Taen Rad (Macrocybe crassa)

Analysis and comparison of Radix Glycyrrhizae (licorice) from Europe and China by capillary-zone electrophoresis (CZE)

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