Do older apples contain more or less pectin in the skins/cores?
In order to make apple jelly and not use pectin, just fresh (not frozen) apples skins and cores: Do older, stored apples have more concentrated pectin in their skins and cores or does it degrade? should I boil more? add more sugar, less water?
Best Answer
Older apples should have less pectin, probably:
The chemistry of pectins is a vast and complex subject ... all these enzymes work together to degrade the pectin and eliminate is sticky effect. They exist naturally in plant tissues ... after harvest, during apple storage, the protopectins within cell walls are naturally broken down ... During that process, the apples get softer ... as the apples become overripe and mealy, the soluble pectins are degraded into nonpectic substances.
Quoted from "The New Cider Maker's Handbook" chapter 12 "The Pectic Substances" by Claude Jolicoeur. (There's also apparently an entire book on this called "The Pectic Substances" by Z. I. Kertesz.)
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Quick Answer about "Do older apples contain more or less pectin in the skins/cores?"
Underripe fruit generally has higher levels of pectin. The pectin is higher in the skins and cores of the fruit rather than the flesh. According to the National Center for Home Preservation, some fruits that contain high levels of pectin are: Apples, sour.Do ripe apples have more pectin?
Ripe apples contain less pectin, but the level varies greatly from one tree to the next; some varieties are suitable when ripe, while some have virtually no pectin by that time. Over-ripe apples are the worst. You can use your damaged or misshapen apples for making pectin.Which apple has the most pectin?
Green apples, as in underripe (best in July or August) and green apples, as in Granny Smith, contain the most pectin and make the strongest stock.Does over-ripe fruit have more pectin?
What fruits are high in natural pectin? Just-ripe fruit has a higher natural pectin content than under-ripe or over-ripe fruit.Do apple cores have pectin?
Homemade liquid pectin can be made from apple scraps, meaning the cores and peels, or unpeeled cored and cubed apples. Just stockpile these in the freezer until you have enough for the recipe.Extract Your Own PECTIN From APPLES! (Homemade Pectin Recipe) | Kitchen Instruments
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