HPLC, Two-Dimensional TLC Determination of Phenolic Content, and an<i>In Vitro</i>Perspective to Antioxidant Potential of<i>Euonymus verrucosus</i>Scop. Extracts

Kukuła-Koch, Wirginia; Widelski, Jarosław; Koch, Wojciech; Głowniak, Kazimierz

doi:10.1556/achrom.27.2015.4.11

Cited by 8 publications

(4 citation statements)

References 18 publications

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“…Although a great deal of wastewater treatment plans have been developed, the best way to deal with these problems is to reduce the use of water and chemicals. 6,7 Moreover, if indigo dyeing can be carried out on the loose cotton fibers, a series of cotton yarns with various performance, shapes, and indigo colors would be produced through spinning. Aided by changes in fiber composition, proportion, and the spinning method, and then in weaving (tatting or knitting), abundant fabric surface effects could be produced through the selection of yarn and texture variation, allowing more personalized high-quality new denim products to potentially be developed.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Indigo Dyeing and Fixation Mechanism of Wet Rubbing Fastness Agent on Cotton Fiber in Silicone Non-Aqueous Dyeing System

Pei¹,

Luo²,

Gu³

et al. 2020

AATCC Journal of Research

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Indigo dyeing of cotton fiber in the silicone non-aqueous medium dyeing system was investigated to avoid the multiple dyeing of cotton yarn or fabric, high environmental pollution, and the need for multiple washing and sand washing. After fixing, the rubbing fastness of dyed fiber could be improved to 3–4 grade and the washing fastness increased 1–2 levels. The mechanism of rubbing fastness agents was also studied. Most of the wet rubbing fastness agents for indigo dyeing were waterborne polyurethanes. After fixation, a film was formed on the fiber surface. Moreover, the rubbing fastness was improved by the electrostatic interaction between the cellulosic fiber and indigo after treating with fixing agent. Indigo dyeing of cotton fiber was possible in the silicone non-aqueous dyeing system.

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Section: Introductionmentioning

confidence: 99%

Sustainable Indigo Dyeing and Fixation Mechanism of Wet Rubbing Fastness Agent on Cotton Fiber in Silicone Non-Aqueous Dyeing System

Pei¹,

Luo²,

Gu³

et al. 2020

AATCC Journal of Research

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“…The antioxidant activity of the investigated material was characterized by the IC 50 values related to the concentration of extract able to deactivate half of the radicals present in the tested sample (see Table 1) [11]. The lower the IC 50 value, the higher the antioxidant activity of the product.…”

mentioning

confidence: 99%

Influence of Thermal Processing and in vitro Digestion on the Antioxidant Potential of Ginger and Ginger Containing Products

Koch

Kukuła-Koch

Dziedzic

et al. 2016

Natural Product Communications

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Zingiber officinale (Zingiberaceae) is a common spice and a medicine widely cultivated in tropical and subtropical climate around the globe, which contains both precious polyphenols and terpenes in its extracts. The ubiquity of ginger in a variety of foods encouraged the authors to assess the influence of thermal processing and digestion of the plant material on its antioxidant capacity. The obtained results of DPPH assay showed marked differences in the antioxidant potential of the processed samples, in comparison with fresh ginger rhizomes. Autoclave and microwave heating procedures were found to evoke the mildest decomposition of the antioxidants and increase the antioxidant capacity of the plant (from IC 50 of 210±10 for a fresh rhizome to ca 160±16 µg/mL for the former, and to 150±18 for the latter technique), whereas frying and boiling for different durations significantly deteriorated the antiradical potential up to IC 50 = 940±36 µg/mL. Mouth and stomach digestion decreased the antioxidant potential of the extracts even to ca. 1000±47 µg/mL. A protective role of saliva towards the antioxidant compounds against hydrochloric acid and pepsin activities has been proven. A marked deterioration in antioxidant capacity in digested rhizomes may shed new light on the actual absorption of consumed polyphenols with food products.

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“…In the case of microwave heating, the trend was opposite-there was a decrease to 36 mg/g after 5 min [105]. The decrease in the antioxidant activity with an increase in temperature may result from ongoing processes and reactions leading to the formation of new substances with lower antioxidant activity compared to compounds present in the unprocessed raw material (for example, the formation of shogaols from gingerols in the case of ginger rhizome) [106]. A new method of Alpinia officinarum treatment whose effect on antioxidant activity would be worth investigating is lyophilization (freeze-drying), which uses low temperature, rather than the elevated temperature that we have used in every treatment method we have studied.…”

Section: Discussionmentioning

confidence: 99%

Influence of Thermal Treatment on the Composition of Alpinia officinarum Rhizome

Zagórska,

Pietrzak,

Kukula-Koch

et al. 2024

IJMS

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Alpinia officinarum is a representative of the Zingiberaceae family, which is known for its wide use in the food and pharmaceutical industries also due to its precious pharmacological potential. The major aim of the present study was to evaluate the influence of thermal treatment on the composition of the rhizome of Alpinia officinarum and its antioxidant activity. The fresh rhizome was subjected to various thermal treatment processes—boiling, frying and microwave heating during various time intervals—and their composition and antioxidant activity were determined using chromatographic (HPLC – High Performance Liquid Chromatography and HPLC-MS - High Performance Liquid Chromatography Mass Spectrometry) and spectrophotometric (DPPH and TPC – Total Phenolic Content) methods. Pinobanksin was the main compound found in the extract of the fresh rhizome (537.79 mg/kg), followed by galangin (197.7 mg/kg) and zingerone (185.5 mg/kg). The effect of thermal treatment on the rhizome composition was varied. In general, thermal processing significantly decreased the content of active compounds in the rhizome. However, there were some exceptions—boiling for 4 min significantly increased the content of pinobanksin (1162.4 mg/kg) and galangin (280.7 mg/kg), and microwave processing for 4 min increased the content of pinocembrin (213 mg/kg). It was found that boiling and microwave treatment significantly increased the antioxidant activity of the processed rhizomes.

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HPLC, Two-Dimensional TLC Determination of Phenolic Content, and anIn VitroPerspective to Antioxidant Potential ofEuonymus verrucosusScop. Extracts

Cited by 8 publications

References 18 publications

Sustainable Indigo Dyeing and Fixation Mechanism of Wet Rubbing Fastness Agent on Cotton Fiber in Silicone Non-Aqueous Dyeing System

Sustainable Indigo Dyeing and Fixation Mechanism of Wet Rubbing Fastness Agent on Cotton Fiber in Silicone Non-Aqueous Dyeing System

Influence of Thermal Processing and in vitro Digestion on the Antioxidant Potential of Ginger and Ginger Containing Products

Influence of Thermal Treatment on the Composition of Alpinia officinarum Rhizome

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