i've been growing pre 1800's apples and i confirmed i'm not allergic to raw apples pre 1800. there's a genetic bottleneck for all modern apples around 1800 that bred out the phenolic acid, the lack of phenolic acid makes my tongue itchy and my throat swell up. but this orleans reinette i grew didn't cause any allergic reaction to me. i've grafted a bunch of other pre 1800s varietals and i'm converting my front lawn into an apple dominant food forest style garden with berries and perennial edible plants. i have twelve different apple seedling trees and i'll graft some into frankentrees with many apple varietals on one tree.
@fbz@infosec.exchange is that what it is??? I’ve been halfway gaslighting myself for years because every once in a while i encounter an Olde apple that doesn’t make my mouth/throat miserable!!!
(Disclaimer: i can eat any apple with impunity if it’s been cooked/baked/heat processed.)
@mycrowgirl@flipping.rocks yeah it's in scientific papers and stuff. there's a german crowd science thing where folks allergic to raw apples rate many different old apples. I'm also not allergic when cooked or fermented, only when raw.
@fbz@infosec.exchange @mycrowgirl@flipping.rocks This is fascinating, I wonder what the phenolic acid is "neutralizing" (I don't think it's neutralizing something in the chemical sense of the word)
@SRLevine@neuromatch.social Mine is the OAS reaction (birch pollen related) to the Mal d 1 protein. That protein is hella heat sensitive which is why I can have cooked/baked/heat processed apples with zero issue.
The other, more serious apple allergy is to Mal d 3, an nsLTP that isn’t as nearly as thermally sensitive. I doubt this type benefits from the Olde Apples.
The phenolic link would make sense for Mal d1 type (to me at least) because i definitely have a lower reaction when an apple has been cut up for a while and started browning. And that’s straight up polyphenol oxidation.
@fbz@infosec.exchange
@SRLevine@neuromatch.social (and I’m retroactively realising I used way too many acronyms so holler if any of that is gibberish!) @fbz@infosec.exchange
@mycrowgirl@flipping.rocks @SRLevine@neuromatch.social here is the german mega overview page of the crowd research https://www.bund-lemgo.de/apfelallergie.html i found it by stumbling on a video of german apple farmer Eckart Brandt in his orchard where in passing he mentions that he has apples that folks allergic to raw apples can eat. then i went down a rabbit hole trying to source the best ancient apples they tested but the varietals are often german only and not in the usa, or are weirdly translated apple varietal names. then i figured hey, just try pre 1800s anything and that worked.
fbz
Lisa 🦔
