The Fresh Loaf

News & Information for Amateur Bakers and Artisan Bread Enthusiasts

Papaya seeds

Dave W's picture
Dave W

Papaya seeds

What to do with papaya seeds? well!!!!!!!!!!!


Dave W

Mini Oven's picture
Mini Oven

I take it you're not in a tropic zone? First dry them. Plant them in cups with dirt and later transfer them to taller/deeper containers. They love compost and come male and female. Keep several growing until they bloom, then you can eliminate most of the male plants. They don't like wet feet or too small of a pot, better if grown in the ground on an incline. Ripe fruit in about 13 months if all goes well. Very sensitive skin on stalks. Leaves can be used to tenderize steaks. Why?

Mini O

Dave W's picture
Dave W

someone said you can use them in salads!!!!!!! how ? so I wondered if you could use them in bread!


Dave W

ps were in the UK and its cold at the mo!

Thegreenbaker's picture

I didnt think they were for human consumption?



Sean's picture

Papaya Bruschetta from

We've made this several times and it's yummy. It's not my recipe so I provided the source above. To stay on topic, I'm eating a whole wheat cinnamon roll baked this morning from Reinhart's whole wheat book.



  • 1 papaya
  • 5 roma (plum) tomatoes, diced
  • 1/2 red onion, diced
  • 1 red bell pepper, seeded and diced
  • 1/4 cup chopped fresh basil leaves
  • 2 tablespoons white sugar
  • 1/4 cup red wine vinegar
  • 1/4 cup vegetable oil
  • 1/2 teaspoon mustard powder
  • 2 green onions, chopped
  • 1 French baguette, cut into 1/2 inch pieces
  1. Cut papaya in half and remove seeds. Reserve 2 tablespoons of seeds for the dressing. Peel and dice the papaya, and place in a medium bowl. Add tomatoes, red onion, red pepper and basil, and set aside.
  2. In a food processor or blender, combine the papaya seeds, sugar, wine vinegar, oil, mustard and green onions. Process until smooth and thick, and most of the seeds have broken up. Pour over the papaya mixture and stir to coat all of the ingredients. Serve with slices of baguette.
Dave W's picture
Dave W

Sounds good, just off to the supermarket to buy another papaya and I supose i'll have to make a baguett, well it would be cheating to buy one!


Dave W

GeorgeDH's picture

I read that Papaya seeds are a vermifuge (kills worms) but contains a toxin carpine that slows pulse. They taste like nasturtium or wasabi (sulphurophanes) and I believe they are good for the same things: relieving hay fever sensitivity, reducing congestion of lungs or sinuses, and stimulating phase 2 detoxification (sulfation, glycination, bile salts etc.). But only on doses that don't allow accumulation of carpine, which is said to be present at very low levels, and sounds like a short acting neurotoxin. 

Another source says "While most people discard the big black seeds, they are actually edible and have a delightful peppery flavor. They can be chewed whole or blended into a creamy salad dressing, giving it a peppery flavor. " and the recipe on this forum, and absence of reported poisonings, seems to prove that the levels of toxin are low.  


Papaya seeds can be very toxic to fish: they are used to control fish fertility at lower doses.

In fact, they seem to be contraceptive in rats and monkeys. At 50 mg/Kg Day of chloroform extract of papaya seeds: that's a few grams of extract, of perhaps 10:1 strength. It looks toxic, actually. 

 Azoospermia was observed after day 90 of treatment and continued during the whole treatment period. Treatment withdrawal resulted in a gradual recovery in these parameters and 150 days later they reverted to nearly the pretreatment values. Morphological observation of the ejaculated sperm by light and scanning electron microscopy showed deleterious changes, particularly on the mid-piece. Sperm functional tests, viz., sperm mitochondrial activity index, acrosome intactness test and hypo-osmotic swelling test scored in the infertile range during treatment and returned to the fertile values 150 days after drug withdrawal. Histology of the testis revealed shrunken tubules, germ cell atrophy and normal Leydig cells. Ultrastructure of the testis showed vacuolization in the cytoplasm of Sertoli cells and germ cells. Loss of cytoplasmic organelles were evident in the spermatocytes and spermatids. Round spermatids showed loss of Golgi bodies, peripheral mitochondria and vacuolated cytoplasm, indicating maturational arrest. Leydig cell functional test indicated a mild inhibition of steroidogenic function. Haematology and serum biochemistry study disclosed no significant toxicological effect and the serum testosterone level was not affected. Conclusion: Carica papaya seed extract may selectively act on the developing germ cells, possibly mediated via Sertoli cells, leading to azoospermia. 


GeorgeDH's picture

I estimate this is the equivalent of 20-40g dried seeds for an adult human - a cup of seeds, daily. Still, I wouldn't recommend it if your trying, or likely, to get pregnant, and I don't recommend using them often, if at all. There are other vermifuges, other antihistamines and phase 2 stimulants ( brocolli sprouts nasturtiums wasabi brussels sprouts horseradish etc.) no other male contraceptive but still...

bio14c's picture

Chloroform extract of Carica papaya seeds induces long-term reversible azoospermia in langur monkey.

Eli's picture

I also read they have a natural enzyme to whiten teeth. Quite a fruit.


hamishfiskin's picture

I don't know much of the uses of Papaya seed but yes the suggestions above are really good and if there is any use of papaya seed in medicinal use, do share it.

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