Essential Oils from the Leaves of Ocimum Basilicum L., Persicaria Odorata and Coriandrum Sativum L. In Malaysia: Antiurolithic Activity Study Based On Calcium Oxalate Crystallisation

Abstract

Calcium oxalate is one of the most common components in urolithiasis. Its treatment includes the use of synthetic drugs, ultrasound and surgery. However, cheaper alternative treatment using herbal medicine with less adverse side effect is preferred. Essential oils from Thai basil (Ocimum bacilicum L.), Vietnamese coriander (Persicaria odorata) and Chinese parsley (Coriandum sativum L.) were extracted and investigated for antiurolithic activity based on calcium oxalate crystallisation. Most of the crystals formed in control sample were hexagonal calcium oxalate monohydrate with sizes ranging between 3 to 4 m. The size of the crystals was found to be slightly reduced in O. bacilicum oil (2-4 m) at high concentration with less aggregation of crystals. Samples with P. odorata oil gave smaller crystal size (3 m) mainly in dehydrate form and the oil was also found to inhibit the aggregation of the crystals at high concentration. C. sativum oil enhanced crystallisation (5-6 m) with increased concentration and showed high aggregation of the crystals. This preliminary study shows the therapeutic potential of these medicinal plants to be used in traditional anti-urolithic therapy.

Extraction Methods and Bioactivity of Essential Oils from Kesum Leaves (Persicaria odorata): A Short Review

“…The higher antioxidant activity in kesum leaves essential oil was correlated with their active constituents. Dodecanal, decanal, 1-decanol, and sesquiterpenes were the main active compounds in kesum leaves essential oil [4], [6], [9], [13], [35], [36], and are dependent on the extraction methods used. [2] N. Fitriana, Rumayati, N. Sumartini, A. Jayuska, Syaiful, and Harliya, "Formulasi Serbuk Flavour Makanan dari Minyak Atsiri Tanaman Kesum (Polygonum minus Huds) sebagai Penyedap Makanan," J. Apl.…”

An Evaluation of Catalyst Applications in Bio-Oil Upgrading and Biomass Pyrolysis

“…All of the several different refining techniques that will be mentioned below were created either during the war itself or very quickly afterwards. Within a decade after the end of wars, the worldwide oil industry had developed to the point of economic viability [5]. The rising demand for gasoline and jet fuel drove the expansion of refineries globally and the development of new technologies to meet that need.…”