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Journal Details
Format
Journal
eISSN
2449-8343
First Published
04 Apr 2014
Publication timeframe
4 times per year
Languages
English

Search

Volume 66 (2020): Issue 2 (June 2020)

Journal Details
Format
Journal
eISSN
2449-8343
First Published
04 Apr 2014
Publication timeframe
4 times per year
Languages
English

Search

5 Articles
Open Access

HPLC-DAD-ESI/MS comparison of the chemical composition of flowers from two Arnica species grown in Poland

Published Online: 14 Dec 2020
Page range: 1 - 10

Abstract

Summary

Introduction: Arnica flowers are used in pharmaceutical and cosmetic industry. According to EMA only endangered Arnica montana provides the medicinal plant material. However, some European countries also allow the use of A. chamissonis flowers, whose chemical composition is not known in detail.

Objective: The aim of the study was to recognize and compare the chemical composition of A. montana and A. chamissonis flowers collected from plants cultivated in Poland.

Methods: HPLC-DAD-ESI/MS analysis comprised phenolic acids, flavonoids and sesquiterpene lactones.

Results: Thirty eight flavonoids and phenolic acids were recognized and quantified, with patuletin, 6-methoxykaempferol and quercetin present only in A. chamissonis flowers. Moreover, helenalin and acetyl-dihydrohelenalin were identified.

Conclusion:A. montana and A. chamissonis flowers from plants grown in Poland possess similar composition of simple phenols and polyphenols, present in concentration slightly higher in A. montana. Helenalin and dihydrohelenalin esters identified in arnica flowers from various regions of Europe were not detected.

Keywords

  • Arnica montana
  • Arnica chamissonis
  • simple phenols
  • polyphenols
  • sesquiterpene lactones
Open Access

Antioxidant activity of various plant sprouts extracts depending on the processing method of plant material – an in vitro study

Published Online: 14 Dec 2020
Page range: 11 - 18

Abstract

Summary

Introduction: Due to the content of nutrients and taste attributes, the plant sprouts could become a valuable component of a healthy diet.

Objective: The aim of the study was to evaluate the antioxidant potential of various sprouts extracts depending on the processing method of the plant material.

Methods: The extracts in 96%(v/v) ethanol were prepared from fresh, frozen, dry and homogenized sprouts of alfalfa, broccoli, radish, lentil, mung bean, beetroot, sunflower, and kale, using ultrasound-assisted extraction. The antioxidant potential and total polyphenols content were evaluated by the in vitro methods.

Results: The highest antioxidant activity was observed for beetroot and kale as well as broccoli sprouts extracts. The lower potential, in general, was observed in the case of alfalfa, lentil, and mung bean sprouts samples. The lowest activity was observed most frequently for the extracts from dry material, whereas the highest for homogenized as well as frozen and fresh.

Conclusion: The plant sprouts, particularly beetroot, kale, and broccoli, could be a valuable source of natural antioxidants.

Keywords

  • sprouts
  • antioxidant activity
  • ultrasound-assisted extraction
  • food processing methods
Open Access

Optimization of microwave-assisted extraction of phenolic compounds from ginger (Zingiber officinale Rosc.) using response surface methodology

Published Online: 14 Dec 2020
Page range: 19 - 27

Abstract

Summary

Introduction: Ginger (Zingiber officinale Rosc.) is a common spice and precious herbal plant in Vietnam. It contains many bioactive compounds, especially phenolic compounds useful for human health. Hence, the extraction and application of these compounds in medical technology are necessary.

Objective: The goal of this study is to determine the optimal extraction conditions with the assistance of microwave, for instance solvent/material ratio (ml/g), solvent concentration (%, v/v) and extraction time, on the extraction yield of ginger rhizome, such as total polyphenol content (TPC) and antioxidant capacity (AC).

Methods: The dried sample was extracted by microwave-assisted extraction (MAE). TPC and AC of received extract were measured by the Folin-Ciocalteu method and phenanthroline assay. The optimization process used response surface methodology (RSM) (Central composite face design, CCF) with major influencing factors including solvent concentration, solvent/material ratio and extraction time.

Results: The results showed that the optimal extraction conditions were the ethanol concentration of 60%, ethanol/material ratio of 48.6/1 (ml/g), extraction time of 1 minute.

Conclusion: The maximum TPC and AC peaked at 27.89±1.99 mg GAE/g dry matter and 12.24±0.04 mmol Fe/g dry matter (DM) at optimal extraction conditions. Besides, some factors strongly affected the extraction yield and interacted together.

Keywords

  • antioxidant
  • extraction
  • ginger
  • microwave
  • phenolic compounds
  • response surface methodology (RSM)
Open Access

Pelargonium root (Pelargonium sidoides DC) extract in paediatric patients - food supplement or medicine?

Published Online: 14 Dec 2020
Page range: 28 - 33

Abstract

Summary

Pelargonium sidoides DC is an interesting plant with various biological properties. Pharmaceutical companies and manufacturers of food supplements are particularly interested in its beneficial effects in upper respiratory tract infections. The search for new therapeutic options is especially important at a time when antibiotics are prescribed too often. However, due to proven clinical effects of extracts from Pelargonium sidoides, their use in diet supplements, especially intended for infants and small children, is highly disputable. The paper presents reports on the use of Pelargonium sidoides extracts in paediatrics and also tries to answer the question whether the pelargonium extract should be qualified as food supplement or medicine.

Keywords

  • Pelargonium sidoides DC
  • root extract
  • clinical studies
  • children
  • food
Open Access

Anti-HIV activity of some natural phenolics

Published Online: 14 Dec 2020
Page range: 34 - 43

Abstract

Summary

Acquired immunodeficiency syndrome (AIDS) is an immunosuppressive disease caused by human immunodeficiency virus (HIV). The urgent need for searching novel anti-HIV/AIDS medicines is a global concern. So far, a lot of medicinal and aromatic plants (MAPs) have been analyzed to select those that could assist in the prevention and/or amelioration of the disease. Among biologically active compounds present in these plants, one of the most promising group are phenolics. The purpose of this article was to report anti-HIV activity of selected phenolic compounds of plant origin.

Keywords

  • medicinal plants
  • phenolics
  • AIDS
  • anti-HIV activity
  • mechanism of action
5 Articles
Open Access

HPLC-DAD-ESI/MS comparison of the chemical composition of flowers from two Arnica species grown in Poland

Published Online: 14 Dec 2020
Page range: 1 - 10

Abstract

Summary

Introduction: Arnica flowers are used in pharmaceutical and cosmetic industry. According to EMA only endangered Arnica montana provides the medicinal plant material. However, some European countries also allow the use of A. chamissonis flowers, whose chemical composition is not known in detail.

Objective: The aim of the study was to recognize and compare the chemical composition of A. montana and A. chamissonis flowers collected from plants cultivated in Poland.

Methods: HPLC-DAD-ESI/MS analysis comprised phenolic acids, flavonoids and sesquiterpene lactones.

Results: Thirty eight flavonoids and phenolic acids were recognized and quantified, with patuletin, 6-methoxykaempferol and quercetin present only in A. chamissonis flowers. Moreover, helenalin and acetyl-dihydrohelenalin were identified.

Conclusion:A. montana and A. chamissonis flowers from plants grown in Poland possess similar composition of simple phenols and polyphenols, present in concentration slightly higher in A. montana. Helenalin and dihydrohelenalin esters identified in arnica flowers from various regions of Europe were not detected.

Keywords

  • Arnica montana
  • Arnica chamissonis
  • simple phenols
  • polyphenols
  • sesquiterpene lactones
Open Access

Antioxidant activity of various plant sprouts extracts depending on the processing method of plant material – an in vitro study

Published Online: 14 Dec 2020
Page range: 11 - 18

Abstract

Summary

Introduction: Due to the content of nutrients and taste attributes, the plant sprouts could become a valuable component of a healthy diet.

Objective: The aim of the study was to evaluate the antioxidant potential of various sprouts extracts depending on the processing method of the plant material.

Methods: The extracts in 96%(v/v) ethanol were prepared from fresh, frozen, dry and homogenized sprouts of alfalfa, broccoli, radish, lentil, mung bean, beetroot, sunflower, and kale, using ultrasound-assisted extraction. The antioxidant potential and total polyphenols content were evaluated by the in vitro methods.

Results: The highest antioxidant activity was observed for beetroot and kale as well as broccoli sprouts extracts. The lower potential, in general, was observed in the case of alfalfa, lentil, and mung bean sprouts samples. The lowest activity was observed most frequently for the extracts from dry material, whereas the highest for homogenized as well as frozen and fresh.

Conclusion: The plant sprouts, particularly beetroot, kale, and broccoli, could be a valuable source of natural antioxidants.

Keywords

  • sprouts
  • antioxidant activity
  • ultrasound-assisted extraction
  • food processing methods
Open Access

Optimization of microwave-assisted extraction of phenolic compounds from ginger (Zingiber officinale Rosc.) using response surface methodology

Published Online: 14 Dec 2020
Page range: 19 - 27

Abstract

Summary

Introduction: Ginger (Zingiber officinale Rosc.) is a common spice and precious herbal plant in Vietnam. It contains many bioactive compounds, especially phenolic compounds useful for human health. Hence, the extraction and application of these compounds in medical technology are necessary.

Objective: The goal of this study is to determine the optimal extraction conditions with the assistance of microwave, for instance solvent/material ratio (ml/g), solvent concentration (%, v/v) and extraction time, on the extraction yield of ginger rhizome, such as total polyphenol content (TPC) and antioxidant capacity (AC).

Methods: The dried sample was extracted by microwave-assisted extraction (MAE). TPC and AC of received extract were measured by the Folin-Ciocalteu method and phenanthroline assay. The optimization process used response surface methodology (RSM) (Central composite face design, CCF) with major influencing factors including solvent concentration, solvent/material ratio and extraction time.

Results: The results showed that the optimal extraction conditions were the ethanol concentration of 60%, ethanol/material ratio of 48.6/1 (ml/g), extraction time of 1 minute.

Conclusion: The maximum TPC and AC peaked at 27.89±1.99 mg GAE/g dry matter and 12.24±0.04 mmol Fe/g dry matter (DM) at optimal extraction conditions. Besides, some factors strongly affected the extraction yield and interacted together.

Keywords

  • antioxidant
  • extraction
  • ginger
  • microwave
  • phenolic compounds
  • response surface methodology (RSM)
Open Access

Pelargonium root (Pelargonium sidoides DC) extract in paediatric patients - food supplement or medicine?

Published Online: 14 Dec 2020
Page range: 28 - 33

Abstract

Summary

Pelargonium sidoides DC is an interesting plant with various biological properties. Pharmaceutical companies and manufacturers of food supplements are particularly interested in its beneficial effects in upper respiratory tract infections. The search for new therapeutic options is especially important at a time when antibiotics are prescribed too often. However, due to proven clinical effects of extracts from Pelargonium sidoides, their use in diet supplements, especially intended for infants and small children, is highly disputable. The paper presents reports on the use of Pelargonium sidoides extracts in paediatrics and also tries to answer the question whether the pelargonium extract should be qualified as food supplement or medicine.

Keywords

  • Pelargonium sidoides DC
  • root extract
  • clinical studies
  • children
  • food
Open Access

Anti-HIV activity of some natural phenolics

Published Online: 14 Dec 2020
Page range: 34 - 43

Abstract

Summary

Acquired immunodeficiency syndrome (AIDS) is an immunosuppressive disease caused by human immunodeficiency virus (HIV). The urgent need for searching novel anti-HIV/AIDS medicines is a global concern. So far, a lot of medicinal and aromatic plants (MAPs) have been analyzed to select those that could assist in the prevention and/or amelioration of the disease. Among biologically active compounds present in these plants, one of the most promising group are phenolics. The purpose of this article was to report anti-HIV activity of selected phenolic compounds of plant origin.

Keywords

  • medicinal plants
  • phenolics
  • AIDS
  • anti-HIV activity
  • mechanism of action

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