I’m hoping this is a first step toward using some other protein(s). There are some fairly high protein plants like chickpeas and soy that are less intensive to produce than milk.

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lotsofpulp 5 hours ago | parent [-]

Are proteins fungible? I thought different protein sources provided different amino acids.

	▲	WorldMaker an hour ago \| parent \| next [-]
		In case of plasticizing it, it should be fungible in terms of use the cheapest and/or least healthy to make plastic-like single use goods. That said, the question I have is given the nature of calcium (and its relation to limestone), I'm wondering if the milk protein here is especially useful to plasticizing because of its calcium content? A quick search does classify calcium caseinate as both a protein and technically a calcium salt.
	▲	throwway120385 3 hours ago \| parent \| prev [-]
		No they are not but they can be combined to produce a "complete" amino acid profile.