Effects of Hydroxyapatite Nanoparticles and Silicon on the Growth and Major Bioactive Components of Zingiber Officinale Roscoe.

Ku, Adrian Zu Hui (2023) Effects of Hydroxyapatite Nanoparticles and Silicon on the Growth and Major Bioactive Components of Zingiber Officinale Roscoe. Final Year Project (Bachelor), Tunku Abdul Rahman University of Management and Technology.

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Abstract

Ginger, also known as Zingiber officinale Roscoe is a multifunctional crop that has high economical value in the domestic and global market. It can be used as spices, seasoning, and traditional medicinal. The medicinal properties of ginger are mainly attributed by its bioactive compound such as gingerol, shogaol, paradol, zingerone, and terpenoid. These bioactive compounds had been proven attribute to some medicinal effect such as antioxidant, anti-inflammatory, antimicrobial, and so on. Among these bioactive compounds, 6-gingerol was proven to be the most abundant bioactive compounds in the ginger. Ginger’s versatile properties have increased the demand of ginger in the market. Bioactive compounds in ginger are affected by several factors during planting such as quality of medium, environmental conditions, and fertilizer used. Hydroxyapatite Nanofertilizers had been proven to show more beneficial effects than conventional fertilizer. Silicon has been considered as non-essential element in plant but there are many studies that has proven its beneficial effects in agriculture. Thus, this study was carried out in order to evaluate the effect of different concentration of hydroxyapatite nanoparticles and silicon on the growth rate, yield and major bioactive component of ginger. The ginger plants were cultivated hydroponically by using cocopeat. After cultivation for six months, the growth parameters such as number of leaves, plant height, photosynthesis rate, chlorophyll content, cocopeat moisture, pH, and electrical conductivity value were measured before harvesting. Then, the harvested ginger rhizomes were cleaned, sliced, and freeze dried for Soxhlet extraction. Analysis have shown there were no significant difference for cocopeat pH, moisture, photosynthesis rate, number of leaves, fresh weight, moisture content of rhizomes (P>0.05). For plant height, the control was significantly higher in plant height as compared to other treatments. The Si2 treatment showed significance increase for the chlorophyll content. The cocopeat EC for HA1 and HA3 were significantly lower than other treatments. The TPC content level for 6-gingerol level have significance increase for Si3 treatment as compared to the control. Thus, the silicon treatment showed a higher potential to be applied in order to increase the growth and major bioactive component in ginger. Keywords: Ginger, Hydroxyapatite Nanoparticles, Silicon, Gingerol, Total phenolic content