Daun Hibiscus rosa sinensis

Analisis proksimat, aktiviti antioksidan dan kandungan bahan inorganik

Translated title of the contribution: Hibiscus rosa sinensis leaves: Analysis of proximate, antioxidant activities and inorganic compound

Saiful Irwan Zubairi, Nurul Shahreda Jaies

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A variety of herbal plants species has been used in traditional medicine. Most of these plants contained several potent bio-active ingredients and nutrients that could give potential positive effects to the health such as antioxidant and antipyretic. Hibiscus rosa sinensis, commonly known as Bunga raya, have similar concoction characteristic to tea which contain antioxidants that help to control cholesterol. In addition, mucilage that was found in the leaves could helps to reduce extreme body heat during fever (which potentially acts as an antipyretic). Therefore, this preliminary study on the fresh and dried H. rosa sinensis leaves was carried out to analyze and identify the nutrients content, anti-oxidants and inorganic material. Total phenolic content (TPC) method was used for both fresh and dried leaves prior to the antioxidant activities of DPPH free radicals scavenging and ferric ion reducing antioxidant power (FRAP) as to confirm the existence of antioxidant constituents. Meanwhile, the composition of heavy metals was studied using inductively coupled plasma mass spectrometry (ICP-MS). The proximate analysis of the fresh leaves showed the presence of moisture content (9.03%), protein (10.44%), fat (6.43%), crude fiber (11.55%), ash (11.22%) and carbohydrate (51.33%). Meanwhile, the inorganic contents are as follows: cadmium (Cd), chromium (Cr), arsenic (As), nickel (Ni), lead (Pb), iron (Fe) and zinc (Zn). Furthermore, the antioxidant activities of FRAP and DPPH showed that dried leaves of H. rosa sinensis was higher than the fresh leaves (p<0.05) irrespective of any solvent used. The positive correlation between TPC and two other antioxidant activities of DPPH and FRAP (p<0.05) indicates the presence of antioxidant components in the acetone and water extracts. Therefore, the high availability of essential nutritional component, anti-oxidants and low concentration of hazardous inorganic matter in H. rosa sinensis leaves enable it to be used as one of the potential natural products to treat high fever (pyretic).

Original languageMalay
Pages (from-to)260-270
Number of pages11
JournalMalaysian Journal of Analytical Sciences
Volume18
Issue number2
Publication statusPublished - 2014

Fingerprint

Inorganic compounds
Antioxidants
Antipyretics
Ions
Ashes
Oxidants
Nutrients
Inductively coupled plasma mass spectrometry
Scavenging
Arsenic
Chromium
Heavy Metals
Acetone
Nickel
Biological Products
Cadmium
Medicine
Free Radicals
Zinc
Moisture

Keywords

  • Antioxidant
  • Essential nutrient component
  • Hibiscus rosa sinensis
  • Inorganic materials
  • Proximate

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Daun Hibiscus rosa sinensis : Analisis proksimat, aktiviti antioksidan dan kandungan bahan inorganik. / Zubairi, Saiful Irwan; Jaies, Nurul Shahreda.

In: Malaysian Journal of Analytical Sciences, Vol. 18, No. 2, 2014, p. 260-270.

Research output: Contribution to journalArticle

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