Analysis of mercury in Malaysian herbal preparations

Ang, Hooi Hoon; Lee, KL

doi:10.4314/jmbr.v4i1.10665

Cited by 21 publications

(15 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Trace elements, namely, Cu, Fe, and Zn present in VCO samples were estimated following the acid digestion method (Ang & Lee, ). Quantitative measurement of trace elements present in VCO was performed using the atomic absorption spectrometer (Thermo Scientific iCE 3000 series, India).…”

Section: Methodsmentioning

confidence: 99%

Engineering intervention for production of virgin coconut oil by hot process and multivariate analysis of quality attributes of virgin coconut oil extracted by various methods

Ramesh

Pandiselvam

Thushara

et al. 2020

J Food Process Engineering

View full text Add to dashboard Cite

ICAR-Central Plantation Crops Research Institute, India, has designed and developed a virgin coconut oil (VCO) cooker for the extraction of oil by the hot process. However, a number of VCO production processes being followed in India and elsewhere cause variations in the physicochemical properties, which in turn potentially affect the nutritional and medicinal properties of VCO. The physical and biochemical properties of VCO from the hot process (VCO-Hot), fermentation (VCO-Fer), expelled from dried gratings (VCO-EDG), centrifugation (VCO-Cen), and conventionally prepared copra coconut oil (CCO) were investigated in light of the design concept of the VCO cooker. The nutritionally important total phenolic content (mg GAE/100 g) and antioxidant capacity of all the VCOs were found to be in the range of 0.446 ± 0.041 (VCO-Cen) to 2.867 ± 0.152 (VCO-Hot) and 3.87 mM Trolox equivalent (TE) (VCO-Cen) to 11.31 mM TE (VCO-Hot), respectively. Multivariate analysis revealed that quality attributes viz., total phenol, total flavonoid, and cupric ion reducing antioxidant capacity of VCO-Hot defined by principal component 1. Hierarchical clustering showed that the VCO-Hot belonged to the group with high total phenolic and flavonoids content and strong antioxidant capacity. Comparative biochemical properties along with multivariate analysis differentiated the various VCO samples. Practical ApplicationsProduction of virgin coconut oil (VCO) by the hot process has been standardized by ICAR-CPCRI and the technology has been successfully adopted by several entrepreneurs. VCO has a tremendous export potential and hence has a greater demand in the international market. The quantum of VCO export from India has been 818 MT to various destinations such as the United States, Japan, Australia, United Kingdom, and Middle East (https://www.coconutboard.in). The export earnings of VCO have reached over Rs. 260 million in 2015-2016. The consumers are not aware of the different VCO production methods and the resultant properties of VCO (Manikantan

show abstract

Section: Methodsmentioning

confidence: 99%

Engineering intervention for production of virgin coconut oil by hot process and multivariate analysis of quality attributes of virgin coconut oil extracted by various methods

Ramesh

Pandiselvam

Thushara

et al. 2020

J Food Process Engineering

View full text Add to dashboard Cite

show abstract

“…Then, the mixture was boiled gently over a water bath (95°C) for 4-5 h (or until the sample had completely dissolved) (Ang and Lee 2005).…”

Section: Methods C (Nitric-hydrochloric Acid Digestion 1:3)mentioning

confidence: 99%

Comparative study of three digestion methods for elemental analysis in traditional medicine products using atomic absorption spectrometry

et al. 2016

View full text Add to dashboard Cite

Background: Traditional medicine mainly of herbal origin is widely used all around the world. Heavy metal contamination in such products is frequently reported. Accumulation of heavy metals in the human body leads to various health hazards. Thus, precise determination for such contaminants is required for safety assurance. Sample preparation is a significant step in spectroscopic analysis to achieve reliable and accurate results. Wet digestion methods are basically used for the dissolution of herbal product samples prior to elemental analysis.

show abstract

“…The samples were then subjected to acid digestion method that is explained below to determine the concentrations (ppm) of Cd, Cu, Ni, Pb and Zn in samples. Digestion Plant powder samples (2g each) were dissolved in freshly prepared 9ml mixture of HNO3 (65%) and HCl (37%) for 12 hours and heated gently for 5 hours at 95 o C till the complete dissolution of sample to small volume and deionized water added up to marked 50 ml final volume [52]. Atomic absorption spectrophotometry Heavy metal concentrations of the samples were determined by flame atomic absorption spectroscopy.…”

Section: Sample Collectionmentioning

confidence: 99%

Study of heavy metals (Cd, Cu, Ni, Pb & Zn) in some medicinal plant species (Hertia intermedia, Cardaria chalepense, Scorzonera ammophila, Tamarix karelini, Astragalus auganus) at Pishin area in Balochistan, Pakistan

Hussain

Ullah

Baqi

et al. 2019

PAB

View full text Add to dashboard Cite

Numerous plants of Pakistan are well known for their remedial prospective and are traditionally utilized in herbal medicine system across the country. In the present study, for the first time five of the most prevalent commonly used therapeutic plants (Hertia intermedia, Cardaria chalepense, Scorzonera ammophila, Tamaix karelini and Astragalus. auganus) of Pishin area are studied by atomic absorption spectrometry for their heavy element (Cadmium, Copper, Nickel, Lead and Zinc) concentrations (ppm). Furthermore, some significant features of trace metal toxicity are also deliberated. Though various floras amass heavy metals however our studied plants have low heavy metal concentrations according to the standards of international safety for human consumption. Therefore, all these plants of the area are safe to use for medicinal purpose.

show abstract

Analysis of mercury in Malaysian herbal preparations

Cited by 21 publications

References 16 publications

Engineering intervention for production of virgin coconut oil by hot process and multivariate analysis of quality attributes of virgin coconut oil extracted by various methods

Engineering intervention for production of virgin coconut oil by hot process and multivariate analysis of quality attributes of virgin coconut oil extracted by various methods

Comparative study of three digestion methods for elemental analysis in traditional medicine products using atomic absorption spectrometry

Study of heavy metals (Cd, Cu, Ni, Pb & Zn) in some medicinal plant species (Hertia intermedia, Cardaria chalepense, Scorzonera ammophila, Tamarix karelini, Astragalus auganus) at Pishin area in Balochistan, Pakistan

Contact Info

Product

Resources

About