Enzyme Activity Kit
Product Code : LSK-BL-10175
Enzyme Activity Kit (SKU LSK-BL-10175) lets students carry out an enzyme assay and work out the rate of an enzyme-catalysed reaction, using an enzyme extracted from turnip root with hydrogen peroxide and guaiacol. It serves Class 11–12 biology, B.Sc. biochemistry and life-science practicals for 10 lab groups. The kit reaches schools, colleges, training institutes and tender contractors through Science Lab Supplies in Ambala, India, which can quote it with the glassware it needs.
Specifications
Here are the full details of the Enzyme Activity Kit for 10 groups. In short, it pairs hydrogen peroxide and guaiacol solutions with four phosphate buffers from pH 3 to pH 14, avoids sulfuric acid and potassium permanganate, and runs in 30–45 minutes with laboratory items the school provides.
| Specification | Value |
|---|---|
| SKU | LSK-BL-10175 |
| Experiment | Enzyme assay and rate of the enzymatic reaction |
| Topics | Enzyme catalysis, nature of enzyme action, protein structure–function relationships |
| Reagent system | No sulfuric acid or potassium permanganate needed |
| Instructions | Included |
| Hydrogen peroxide solution | Included |
| Guaiacol solution | Included |
| Phosphate buffer pH 3 | Included |
| Phosphate buffer pH 7 | Included |
| Phosphate buffer pH 10 | Included |
| Phosphate buffer pH 14 | Included |
| Enzyme source | Turnip root (not included) |
| Class size | 10 lab groups |
| Time required | 30–45 minutes |
| Also needed (not included) | Distilled or deionised water, pipet pumps or bulbs, 500 ml Erlenmeyer flask, spectrophotometer, water baths, filter paper and funnel, test tube racks, 13 x 150 mm test tubes, thermometer, cheesecloth, parafilm, hot plate, timer or clock with second hand, permanent markers, ice, razor, goggles, blender |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Enzyme Activity Kit
The kit is used to measure how quickly an enzyme converts its substrate and how pH, temperature and enzyme amount change that rate. Students blend turnip root, filter the extract, add it to peroxide and guaiacol, and follow the colour change on a spectrophotometer, which suits biology lab equipment in India for senior practicals.
- Class 11 biology: enzyme action and the factors affecting enzyme activity, using the four buffers to compare pH 3, 7, 10 and 14.
- Class 12 and B.Sc. practicals: plotting reaction rate against time, with the extract held in 13 x 150 mm Test Tubes in temperature-controlled baths.
- B.Sc. biochemistry: relating protein structure to function by comparing activity at different pH and temperature values.
Hydrogen peroxide, guaiacol and the pH 14 buffer can irritate skin and eyes, so the practical should run under teacher supervision with Safety Goggles, Polycarbonate, 12 pcs worn throughout.
Standard Scope of Supply
Each kit contains instructions, hydrogen peroxide solution, guaiacol solution and phosphate buffers at pH 3, pH 7, pH 10 and pH 14, enough for 10 lab groups. Turnip root, the spectrophotometer, water baths, glassware and the other items listed in the table are not included. Shelf life depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted.
Packing, MOQ and Lead Time
You may ask for a price on a single kit for one class or on several kits for a whole year group. Each quotation from Science Lab Supplies lists the packing, the delivery time and the price for the quantity requested, and a water bath, thermometer or timer can be added as extra lines.
With an Importer-Exporter Code in place, Science Lab Supplies can ship to buyers in Bangladesh, Zambia, Rwanda, South Africa, Qatar and Sri Lanka. Write to us on the contact page with your group count, or build a list in the enquiry cart; tender buyers can follow the lab tender page.
Frequently Asked Questions
How many students can use one Enzyme Activity Kit?
One kit serves 10 lab groups. The group size is up to the teacher, so a class of 30 to 40 students working in threes or fours can complete the assay in a single 30–45 minute session.
Why does the kit avoid sulfuric acid and potassium permanganate?
The assay follows the reaction through a colour change with guaiacol instead of a permanganate titration, so neither sulfuric acid nor potassium permanganate is needed. Hydrogen peroxide and the pH 14 buffer still call for goggles and supervision.
Where does this kit ship from?
Science Lab Supplies handles supply and dispatch from Ambala, India. The same quotation can include water baths, thermometers or glassware, which helps schools and contractors order a complete enzyme practical in one go.
Related Enzyme Kits and Lab Aids
These Biology Lab kits and Clinical Laboratory items extend enzyme teaching to other enzymes and keep temperature and timing under control, so a full enzyme practical, from extract preparation to timed readings, can be quoted together.
- Principles of Enzyme Catalysis — catalase and 1.2% hydrogen peroxide assay with colour enhancer and developer.
- Basic Enzymology Kit — nine invertase experiments, from pH to heat denaturation.
- Bacterial Amylase Project Pack — enzyme, starch, iodine and buffers for pH and temperature studies.
- Forensics Enzymology — saliva amylase case study built around a head-on car collision.
- Water Bath, 7 L — stainless steel bath from 3 °C above ambient to 100 °C, with micro agitator.
- Glass Thermometer — non-mercury, −10 to +110 °C with 1 °C graduation.
- Mechanical Timer 60min — spring-driven 0–60 minute countdown with a loud ring alert.
Browse the full Biology Lab range, the Clinical Laboratory range for baths and thermometers, or all biology lab equipment.
Last updated: 9 October 2026
