Refresh. 3 years on.
Leaf protein concentrate?
Done it with beetleaves. Stays green and retains the beat taste.
When purifying LPC i lose 25%. So not realy profitable.
1 kg leaves gives you 100 g LPC max!
Just a quick look makes it look like a high labor process. I don't know how a home cook would filter protiens out of leafs.
On the other hand, I know sweet potato and amaranth are two high protein leafy greens. I could easily see drying large batches of these. They'd be easy to add to other foods at that point. Is there enough protein at that point to approximate what you are looking for in the filtered plant protiens?
I have a hard time seeing much benefit in separating out all the other nutrients that are in leafy greens just to concentrate the protein.
Is there a benefit to isolating the proteins? Because otherwise, like Casie mentioned, why wouldn't you just dry the leaves and crush them to powder? It's not like there's going to be a whole lot of carbs or fat to strip away for diet restriction purposes, only the stuff that many people waste money to buy in pill form, in less bioavailable forms, only to turn into very expensive urine (unless they pee in their garden, in which it's very expensive compost or garden amendment).
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
-Robert A. Heinlein
The idea behind LPC is that proteine ( meat, fish , soy ) is not always easely available.
Isolating proteine from plant leaves is a reasonable simple way to improve peoples diet.
Practical: LPC is produced by pulping leaves and pressing the juice out, heating the juice to coagulate the protein, and filtering the protein out and drying it.(Wikipedia)
PLC is also a proteine source for animals reducing puchased foods.
A drawback is its possible strong offtaste.
The most interresting leafplants i.m.o. are chards, sweet potato leaves and allium spp. leaves.
Purification is not that easy ,or at least too my knowledge.
Let Nature work for you.
Here. Have a potato. I grew it in my armpit. And from my other armpit, this tiny ad:
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