Monday, March 15, 2010

The Beautiful Baobab

Death is a low chemical trick played on everybody except baobab trees.
- JJ Furnas




The origin of the name baobab is uncertain. Some have suggested that it comes from "bu hobab," a name used for the plant in the markets of Cairo. Or perhaps it was derived from "bu hibab," an Arabic designation for "the fruit with many seeds." The trees are related to the kapok and the balsa. There are 6 species of baobab trees in Madagascar, 1 in Africa and 2 elsewhere (including Australia and Vietnam).
The baobab trees (called renala by inhabitants of Madagascar) are present almost everywhere on the island, except in the highlands and rain forest. They are most prevalent in the dry savannah of the West.


For centuries, much of what was known about baobabs was based exclusively on the African baobab (A digitata). The first recorded reference was by 14th-century Arab traveller Ibn Batuta who mentions the water-storage capacity of its massive trunk. In 1661 the writer Flacourt praised the giants - speaking about the area of Morondava, he wrote: "It is in this region that exists a tree named Anadzahé, which is monstrously stupendously large. It is hollow inside and 12 feet in diameter, round, ending in an archway like the bottom of a lamp. There are only a few small branches here and there on top. The tree is a wonder to be seen."


Sometimes called the "upside-down tree" because of their unusual root-like branch formations, baobabs are extremely long-lived. Some specimens are believed to be more than 3,000 years old. (Two trees on an island off Cape Verde were estimated to be over 5,000 years old. Those trees have since disappeared, however, so the claim can no longer be verified.)


Girth measurements themselves are not reliable estimates of a particular tree's age, as the conditions under which it has grown - and the climatic fluctuations of the centuries - strongly affect them - some years, they can decrease in size. There is no such thing as a "typical" baobab.
Inside its shell, the tree's fruit contains a number of seeds, embedded in a whitish, powdery pulp. Tangy and exceedingly nutritious, the pulp makes a tasty food or, after soaking in water or milk, a refreshing beverage (with 6 times the vitamin C content of an orange). Fermented, it makes a traditional brew.
The seeds may be eaten raw or roasted. They yield an edible oil which is used for cooking and exported for use in cosmetics. The leaves, similar to spinach, are eaten as a relish, especially in times of drought and are considered medicinal - they reduce fever and diarrhœa. The pollen of the African and Australian baobabs is mixed with water to make glue.
The wood has a moisture content of 40%, making it unusuable as timber (which is lucky for the tree because it keeps it from being harvested) but the fibrous bark can be made into baskets, rugs, fishing nets, hats, ropes and the like. The tree seems impervious to having its bark stripped.


Baobab (called kuka trees in Nigeria) flower for the first time at about 20 years. In mid-summer, dozens of luminous white blossoms - the size of saucers - open at sunset and their strong musky odour attracts fruit bats and hosts of insects. Large bats seek out the generous sweet nectar and collect and distribute pollen as they move from flower to flower.


The life of a flower is short lived and it drops to the ground within hours. The resultant seeds are housed in a hairy pod which resembles a miniature rugby ball (inside of which is a white pulp from which cream of tartar is derived). Once they fall to the ground, the pods are fed upon by baboons, monkeys, antelope and elephants, which serve to disperse the hard seeds within. Humans eat them as well.


Bushbabys, squirrels, rodents, lizards, snakes, tree frogs, spiders, scorpions and insects may live out their entire lives in a single tree. Birds nest in holes in the trunk. The hollow trunks of living trees have served as homes, storage barns, places of refuge or worship, and even as prisons or tombs. One tree near Gravelotte in South Africa's Northern Province was used as a bar where up to a dozen thirsty gold diggers could quench their thirst.


Certain tribes in the Transvaal wash baby boys in water soaked in the bark of a baobab. Then, like the tree, they will grow up mighty and strong. To this day the baobab remains at the centre of black magic rituals on the islands where they are found. Most waganga will take their subjects to a special tree, where they may tie ornaments to the branches to give a spell its power, hammer nails into the trunk to kill devils, or climb and sit in the branches whilst carrying out various ceremonies.


The wood being soft, it is subject to attacks of fungus which destroy its life, and renders the part affected easily hollowed out. This is done by natives, and within these hollows they suspend the dead bodies of those who are refused the honor of burial. There they become mummies - perfectly dry and well preserved - without any further preparation of embalmment.

Sunday, March 14, 2010

Ninki Nanka Protects Ancient Baobab Forest


A Ninki Nanka is a legendary creature based inWest African folklore.  According to tradition, the Ninki Nanka lives in the swamps of West Africa. The animal is said to be extremely large and very dangerous. It is said that when a child gets too confident and feels they can disobey their parents and go into the swamp they will be taken by the Ninki Nanka.


The "dragon" is rumoured to look rather like a game of zoological "consequences", possessing the body of a crocodile, the neck of a giraffe and the head of a horse with three horns. Less fantastically, the team's leader, Richard Freeman of the Centre for Fortean Zoology, suspects the ninki-nanka of being a species of colossal monitor lizard. "Whatever the truth," he says, "this is the first dedicated expedition to search for this animal."


More encouraging are the witnesses. A compelling chap called Papa Jinda had described a scene of devastation at a pumping station where, the blog gushes, "a ninki-nanka had destroyed several pipes". It continues: "The mention of a ninki-nanka had caused a panic among the workers, and they had asked for a mirror as it was thought that the only way to get rid of the animal was to show it its reflection.


Back in 1983, amateur naturalist Owen Burnham discovered the fresh carcass of a strange beast on a remote beach in the Gambia. It was around 15 feet long and looked like a cross between a crocodile and a dolphin. Realizing that it was something unknown to science, Owen, a missionary’s son, made detailed sketches of the creature. He and his family then buried it in the hot sand above the tide line, hoping that the dry sand would preserve the body. He also made a detailed map.


Makasutu a 500-hectare piece of bush in the Kombo central district of the republic of The Gambia is deemed by some to be a devil's home. They say he is there in the form of a ninkinanko or dragon, and protects the hidden crown and clothes of King Jatta from Busumbala who was killed 200 years ago by the Muslim king Kombo Silla on his way east to take over the country. Jatta's men took the crown and clothes and placed them for safekeeping in the area of Makasutu, now known as the Big Forest. 


Friday, March 12, 2010

Baobab FDA Approved

Agency Response Letter GRAS Notice No. GRN 000273

CFSAN/Office of Food Additive Safety

July 25, 2009














 The Food and Drug Administration (FDA) is responding to the notice, dated December 17, 2008, that you submitted in accordance with the agency’s proposed regulation, proposed 21 CFR 170.36 (62 FR 18938; April 17, 1997; Substances Generally Recognized as Safe (GRAS); the GRAS proposal). FDA received the notice on December 19, 2008, filed it on December 19, 2008, and designated it as GRAS Notice No. GRN 000273.


The subject of the notice is baobab (Adansonia digitata) dried fruit pulp (BDFP). The notice informs FDA of the view of PhytoTrade Africa (PhytoTrade) that BDFP is GRAS, through scientific procedures, for use as an ingredient in blended fruit drinks and fruit cereal bars at levels up to 10 percent and 15 percent, respectively.


PhytoTrade’s notice discusses evidence supporting its GRAS determination including, a compositional analysis that indicates similarity to other fruit based ingredients and corroborating evidence of a history of safe use as a food ingredient in Southern Africa. PhytoTrade also provides information regarding the method of processing, an estimate of BDFP intake based on proposed use levels, and the possible presence of naturally-occurring toxicants.


PhytoTrade describes the identity and composition of BDFP. PhytoTrade states that BDFP is a free-flowing, coarsely milled powder derived from the fruit of the baobab tree (A. digitata). The color is described as off-white to cream, and the flavor as tart and acidic. PhytoTrade discusses the composition of BDFP noting that BDFP contains approximately 79 percent carbohydrates, 14 percent moisture, 6 percent ash, 2 percent protein, and 0.5 percent total fat, in addition to appreciable concentrations of the vitamins C, B1 and B2, as well as the minerals calcium, iron, magnesium, phosphorus, potassium and sodium.


Compositional details provided by PhytoTrade include the specific fatty acids (predominantly palmitic, oleic, linoleic and alpha-linoleic acids), amino acids, carbohydrates (predominantly pectin and glucose) and organic acids (predominantly citric acid) present in BDFP. PhytoTrade includes a table of values which compares the macronutrient and micronutrient content of BDFP to a number of other commonly consumed fruits and legumes. PhytoTrade notes that BDFP is similar in nutrition and composition to the ranges of nutrients observed in other types of fruit and legumes commonly consumed.


PhytoTrade discusses the method of processing and provides specifications for BDFP. Baobab fruit is first harvested from the wild. The hard shell of the fruit is cracked open and the fruit pulp removed. The seeds and the fibrous material from the fruit pulp are mechanically separated. The fruit pulp is milled and screened using a fine mesh. Finally, the milled fruit pulp is stored in clean, food-grade packaging. PhytoTrade provides food-grade specifications for BDFP. These include limits on foreign matter, ash, lead, cadmium, mercury, arsenic, and microbiological contaminants.


PhytoTrade provides an estimation of daily intake (EDI) for BDFP. PhytoTrade calculates the EDI for BDFP based on data from the United States Food and Drug Administration’s 2005 Total Diet Survey (TDS), and the intended use levels of BDFP. The intended food categories are not listed in the TDS. Therefore, PhytoTrade used two related food products that PhytoTrade expects to have similar consumption levels. These are identified as fruit juice containing 10 percent fruit and granola bar with raisins. The intake values for these two substitute products were combined with maximum intended use levels for blended fruit drinks (10 percent) and fruit cereal bars (15 percent). PhytoTrade reports EDIs at the 50th and 90th percentile for these intended uses as 4.3 grams/person/day (g/p/d) and 8.6 g/p/d, respectively.


PhytoTrade discusses the presence of naturally-occurring toxicants in BDFP, noting that there are reports in the scientific literature indicating that BDFP may contain low concentrations of cyanide and appreciable concentrations of the organic acid oxalic acid. PhytoTrade notes that, based on batch analyses, the concentrations of both cyanide and oxalic acid are below the limit of detection of 5 milligrams per kilogram (mg/kg) for cyanide and 400 mg/kg for oxalic acid in BDFP. PhytoTrade further notes that the concentration of cyanide and oxalic acid is known to be higher in several commonly consumed foods, such as cassava flour in the case of cyanide and spinach and many other vegetables in the case of oxalic acid. PhytoTrade states that if these compounds are present in BDFP at the limit of detection, based on its review of the scientific literature and the EDI for BDFP, the exposures to these substances in food would not pose a risk to human health.

Potential Labeling Issues

Under section 403(a) of the Federal Food, Drug, and Cosmetic Act (FFDCA), a food is misbranded if its labeling is false or misleading in any particular. Section 403(r) of the FFDCA lays out the statutory framework for the use of labeling claims that characterize the level of a nutrient in a food or that characterize the relationship of a nutrient to a disease or health-related condition. In describing the intended use of BDFP and in describing the information that PhytoTrade relies on to conclude that BDFP is GRAS under the conditions of its intended use, PhytoTrade raises a potential issue under these labeling provisions of the FFDCA. If products that contain BDFP bear any claims on the label or in labeling, such claims are the purview of the Office of Nutrition, Labeling, and Dietary Supplements (ONLDS) in the Center for Food Safety and Applied Nutrition.


The Office of Food Additive Safety neither consulted with ONLDS on this labeling issue nor evaluated the information in your notice to determine whether it would support any claims made about BDFP on the label or in labeling.

Section 301(ll) of the FFDCA

The Food and Drug Administration Amendments Act of 2007, which was signed into law on September 27, 2007, amends the FFDCA to, among other things, add section 301(ll). Section 301(ll) of the FFDCA prohibits the introduction or delivery for introduction into interstate commerce of any food that contains a drug approved under section 505 of the FFDCA, a biological product licensed under section 351 of the Public Health Service Act, or a drug or a biological product for which substantial clinical investigations have been instituted and their existence made public, unless one of the exemptions in section 301(ll)(1)-(4) applies. In its review of PhytoTrade’s notice that BDFP is GRAS for use in blended fruit drinks and fruit cereal bars, FDA did not consider whether section 301(ll) or any of its exemptions apply to foods containing BDFP. Accordingly, this response should not be construed to be a statement that foods that contain BDFP, if introduced or delivered for introduction into interstate commerce, would not violate section 301(ll).

Conclusions

Based on the information provided by PhytoTrade, the agency has no questions at this time regarding PhytoTrade’s conclusion that BDFP is GRAS under the intended conditions of use. The agency has not, however, made its own determination regarding the GRAS status of the subject use of BDFP. As always, it is the continuing responsibility of PhytoTrade to ensure that food ingredients that the firm markets are safe, and are otherwise in compliance with all applicable legal and regulatory requirements.


In accordance with proposed 21 CFR 170.36(f), a copy of the text of this letter responding to GRN 000273, as well as a copy of the information in this notice that conforms to the information in the GRAS exemption claim (proposed 21 CFR 170.36(c)(1)), is available for public review and copying via the FDA home page at http://www.fda.gov. To view or obtain an electronic copy of the text of the letter, follow the hyperlinks from the “Food” topic to the “Food Ingredients and Packaging” section to the “Generally Recognized as Safe (GRAS)” page where the GRAS Inventory is listed.
Sincerely,


Laura M. Tarantino, Ph.D.
Director
Office of Food Additive Safety
Center for Food Safety and Applied Nutrition