Podcast
Questions and Answers
What is the recommended harvest time for potatoes to be stored?
What is the recommended harvest time for potatoes to be stored?
- When the leaves and stems are still green
- When the leaves start to turn yellow
- When the potatoes are fully mature
- Soon after the leaves and stems have died (correct)
What is the primary purpose of a penetrometer or texturometer in measuring fruit texture?
What is the primary purpose of a penetrometer or texturometer in measuring fruit texture?
- To determine the size of the fruit
- To apply a force to the fruit surface to determine firmness (correct)
- To analyze the aroma of the fruit
- To measure the optical properties of the fruit
Why should bright red, full-sized ackee fruit not be forced open for human consumption?
Why should bright red, full-sized ackee fruit not be forced open for human consumption?
- Because they may be toxic (correct)
- Because they are not ripe yet
- Because they are too small
- Because they may have a bitter taste
What is the characteristic of fruit that can change during maturation and is used to determine harvest maturity?
What is the characteristic of fruit that can change during maturation and is used to determine harvest maturity?
What is the purpose of the abscission layer in fruit development?
What is the purpose of the abscission layer in fruit development?
How can the ripeness of some fruit be detected during harvest?
How can the ripeness of some fruit be detected during harvest?
What is the term for the natural degradation of the fruit or vegetable that occurs at the last stage of maturation?
What is the term for the natural degradation of the fruit or vegetable that occurs at the last stage of maturation?
What is the significance of the 15 mm lobe separation in ackee fruit?
What is the significance of the 15 mm lobe separation in ackee fruit?
Which of the following maturity indices is associated with the release of volatile chemicals?
Which of the following maturity indices is associated with the release of volatile chemicals?
What is the purpose of removing the seed and membrane portions of ackee fruit?
What is the purpose of removing the seed and membrane portions of ackee fruit?
What is the purpose of fruit opening in determining harvest maturity?
What is the purpose of fruit opening in determining harvest maturity?
Which of the following is NOT a maturity index for fruits and vegetables?
Which of the following is NOT a maturity index for fruits and vegetables?
What is the significance of the caliper measurement in bananas?
What is the significance of the caliper measurement in bananas?
What is the problem in marketing fully mature ackee tree fruit?
What is the problem in marketing fully mature ackee tree fruit?
What is the role of volatile chemicals in fruits?
What is the role of volatile chemicals in fruits?
What is the significance of the analysis of hypo glycine in ackee tree fruit?
What is the significance of the analysis of hypo glycine in ackee tree fruit?
What happens to ackee tree fruit when it is fully mature?
What happens to ackee tree fruit when it is fully mature?
Why is the sense of smell limited in determining the ripeness of fruits?
Why is the sense of smell limited in determining the ripeness of fruits?
Flashcards
Harvest Maturity
Harvest Maturity
The ideal stage for harvesting fruits/vegetables, impacting post-harvest life.
Ackee Fruit Safety
Ackee Fruit Safety
Do not eat unopened or partially opened fruits to avoid health hazards.
Leaf Changes at Harvest
Leaf Changes at Harvest
Indicators of crop condition, especially for root crops.
Abscission Layer
Abscission Layer
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Harvest Timing & Flavor
Harvest Timing & Flavor
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Fruit Firmness
Fruit Firmness
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Texture Analyzers
Texture Analyzers
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Maturity Indices
Maturity Indices
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Aroma as Maturity Index
Aroma as Maturity Index
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Caliper Grade
Caliper Grade
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Skin Color
Skin Color
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Optical Methods
Optical Methods
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Study Notes
Harvest Maturity
- Unopened or partially opened ackee fruit should not be consumed, whereas fruit that opens naturally to over 15 mm of lobe separation poses a little health hazard, provided the seed and membrane portions are removed.
- Bright red, full-sized ackee should never be forced open for human consumption.
Leaf Changes
- Leaf quality often determines when fruits and vegetables should be harvested.
- In root crops, the condition of the leaves can indicate the condition of the crop below ground.
- For example, potatoes should be harvested soon after the leaves and stems have died to ensure optimal storage.
Abscission
- An abscission layer is formed in the pedicel as part of the natural development of a fruit.
- Harvesting before the abscission layer is fully developed results in inferior flavored fruit, such as in cantaloupe melons.
Firmness
- Some fruit may change in texture during maturation, especially during ripening when it may become rapidly softer.
- Excessive loss of moisture may also affect the texture of crops.
- Texture analyzers and pressure testers, such as penetrometers and texturometers, can measure firmness in fruits and vegetables.
Maturity Indices
- Skin color can be used to determine harvest maturity, such as in bananas and tomatoes.
- Optical methods, such as shape and size, can also be used to determine harvest maturity.
- Aroma can be used to determine harvest maturity, as most fruits synthesize volatile chemicals as they ripen.
- Fruit opening, such as in ackee fruit, can indicate harvest maturity.
- Leaf changes, such as in potatoes, can also indicate harvest maturity.
- Abscission, such as in cantaloupe melons, can be used to determine harvest maturity.
- Firmness, such as in fruits and vegetables, can be used to determine harvest maturity.
Other Factors
- Harvest maturity can affect the post-harvest life of fruits and vegetables, such as in ackee fruit.
- The caliper grade, which measures the width of individual fingers, can be used to determine harvest maturity in bananas.
- Sweet corn and baby corn are examples of fruits that are harvested at different maturity stages.
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