Describe the procedure, observation/result, and explanation for the reducing sugars test using filtrate from non-germinating maize seeds.

Here is the procedure, observation/result, and explanation for the reducing sugars test using the filtrate from non-germinating maize seeds:

C. Test for Reducing Sugars

Procedure:

1. Crush five non-germinating maize seeds in a mortar using a pestle.
2. Add approximately 10 ml of distilled water to the crushed maize seeds in the mortar and stir thoroughly.
3. Filter the mixture using a filter funnel and filter paper into a clean test tube or beaker to obtain the maize seed filtrate.
4. Pour about 2 ml of the obtained filtrate into a clean test tube.
5. Add 2 ml of Benedict's solution to the test tube.
6. Heat the test tube in a boiling water bath for 5-10 minutes.
7. Observe any color change.

Observation / Result:

• The solution remains blue after heating, or shows no significant color change (e.g., no green, yellow, orange, or brick-red precipitate).

Explanation of results:

• The Benedict's test is used to detect the presence of reducing sugars.
• Reducing sugars, when heated with Benedict's solution, reduce the blue copper(II) ions to brick-red copper(I) oxide precipitate.
• Non-germinating maize seeds primarily store starch as their main food reserve, not reducing sugars. Reducing sugars are typically produced during germination when starch is broken down.
• The absence of a color change (remaining blue) indicates a negative test for reducing sugars, confirming that reducing sugars are absent or present in negligible amounts in the non-germinating maize seed filtrate.