way below Keith queries "Do you think the carotene has any effect on anything if you burn it as fuel?"
not really, it only takes a few ppm carotene to color the oil. Even then carotene is a hydrocarbon (C40H56), not unlike dinodiesel itself, so I really don't think it matters. Keith Addison wrote: > Hello Bob, thankyou! > >> Keith Addison wrote: >>> Hi Bob >>> >>>> In the case of farmed salmon, I believe the dye is added to the diet, >>>> not the processed flesh, (not that it makes a lot of difference) >>>> >>>> http://seattlepi.nwsource.com/opinion/123199_dye23.html >>>> >>>> similarly, the yolks of commercial eggs are yellow only because large >>>> amounts of carotenes are added to the diet. Otherwise the chickens >>>> which never leave the house would produce eggs which were essentially >>>> colorless. >>> Ulp! Yuk. >>> >>> Do you happen to know where the added carotene comes from? >> I'm guessing that it is extracted from red palm oil, but I don't know >> for sure. > > That's what I was guessing too, I'm aware of the carotene in palm > oil, especially crude palm oil. I was wondering if we could maybe > shift the blame for the rainforest destruction from biodiesel to the > commercial egg hatcheries, LOL! > >> The red is from the high concentration of carotenes, several >> times greater than tomatoes or carrots. >> >> http://www.safarimkt.com/red%20palm%20oil.html > > Thanks for this, I'm doubly glad of that link, sustainable palm oil > on the market and not just a theory. > >> Interesting aside, I'm getting waste oil from a company that is paid to >> haul off the liquid wastes from numerous chicken processing plants. Some >> of the waste comes from fry-o-lators and I'm guessing, that they are >> using red palm oil. My biodiesel made from this oil is quite red, if I >> use only a base catalysis. If I use an acid/base process, the acid stage >> degrades the carotenes and the fuel appears the usual dark straw color. > > Michael Allen said the same about processing high-FFA crude palm oil > in Thailand. Red biodiesel can be an indication of an incomplete > reaction, but probably not when palm oil is involved. Do you think > the carotene has any effect on anything if you burn it as fuel? > >>> Also, do you or does anybody know if battery chickens are fed some or >>> other additive to make the eggshells brown rather than white? That >>> was being done in the UK in the 70s following market research that >>> found a public preference for brown eggs, according to a news report >>> I saw at the time, but I never heard anything further about it. >> I'm pretty sure that egg shell color is genetic. Only the proper variety >> of chicken will produce the brown shell, regardless of diet. > > That's what we find. I haven't kept white chickens before, but now we > have three and they lay white eggs, the brown ones lay brown eggs. I > guess as Zeke says if they eat beetroot they'll have pink eggs, but > we often feed them red swiss chard and it doesn't make any > difference. They scratch about in the pastures and eat lots of greens > and bugs and stuff that I can't even see but they can, they fertilise > the pasture for the next crop, they give us lots of real eggs and > meat, they have a great time and they're really healthy. Serious > lapse of the imagination putting them in a cage, IMHO. > > So anyway, brown eggs are really brown even if yellow yolks aren't > really yellow. That's good to know, at least. > > All best > > Keith > > > <snip> > > > > > _______________________________________________ > Biofuel mailing list > Biofuel@sustainablelists.org > http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): > http://www.mail-archive.com/biofuel@sustainablelists.org/ > > > > -- Bob Allen http://ozarker.org/bob "Science is what we have learned about how to keep from fooling ourselves" — Richard Feynman _______________________________________________ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
