FOOD PROCESSING AND PRESERVATION
HIGH PRESSURE PROCESSING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Pectin is needed to make jam set. Which of these have the highest pectin content?
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a) Potatoes, carrots and swede
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. b) Apples, blackcurrants and gooseberries.
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c) Strawberries, pears and bananas.
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d) Onions, tomatoes and peppers
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Explanation:
Detailed explanation-1: -Just-ripe fruit has a higher natural pectin content than under-ripe or over-ripe fruit. High pectin fruits include apples, blackcurrants, citrus, crab apples, cranberries, plums, grapes, pomegranates, redcurrants and quinces.
Detailed explanation-2: -The fruits containing the most pectin are citrus fruits, especially grapefruits, lemons and oranges. The majority of the pectin resides in the citrus peel, but the pulp also contains some.
Detailed explanation-3: -It’s best to purchase new regular pectin (powder or liquid) each season because using old pectin can result in a weak gel formation. This is less of a problem with modified and low-methoxyl pectin (the type used for no-sugar or low-sugar jams).
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