Time : 12.30 p.m - 2.30 p.m
Venue : Biology Laboratory
On Friday, Nadia and Maryam Atiqah had done an experiment of herbs and their medicinal properties to study the effect of zingiber spp ( Halia Hitam ) in the growth of microorganisms.
Aim : To study the effect of zingiber spp in the growth of microorganisms
Problem statement : Does zingiber spp effect the growth of microorganisms?
Hypothesis : Zingiber spp slow down the growth rate of microorganisms
Apparatus / materials : zingiber spp, beaker, spatula,petri dish, tripod stand, bunsen burner, measuring cylinder, martar, filter paper, funnel, nutrient agar
Procedure :
- Cut 3cm of zingiber spp
- Grate and wash the zingiber spp using martar
- Filter the juice of zingiber spp
- Boil 10g nutrient agar in 20ml of distilled water
- Add in 10ml juice of zingiber spp
- Pour into two petri dish and let it cool
- Leave one petri dish closed and the other petri dish exposed to the air
- Leave for 3 days
- Repeat steps 1 – 8 without adding zingiber spp juice
- Record the growth of microorganisms in the table
Cut the zingiber spp at school's herbs garden
A cleaned zingiber spp
A nutrient agar
Maryam is stir the nutrient agar
Nadia is filter the juice of zingiber spp and maryam is pour the nutrient agar into the petri dish
Nadia is measuring the juice of zingiber spp using measuring cylinder
Leave one petri dish closed
Result after 3 days :
Agar without zingiber that exposed to the air
Observation :
Petri dish | Condition | Growth |
Agar + zingiber spp | Exposed to the air | 60% |
Agar + zingiber spp | Does not exposed to the air | 0% |
Agar | Exposed to the air | 100% |
Agar | Does not exposed to the air | 0% |
Discussion :
Zingiber spp slow down the growth of microorganisms as it contains antiseptic properties. Hence zingiber spp can be use as topical ointment to prevent wound become septic
Zingiber spp slow down the growth of microorganisms as it contains antiseptic properties. Hence zingiber spp can be use as topical ointment to prevent wound become septic
Conclusion :
Zingiber effect the growth of microorganisms
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