Now comes the pollen boom of the 1980s, touted as a can't loose proposition by its promoters. After all, they say, not only is the demand for pollen as human food at an all time high, but also trapping pollen from a colony is beneficial to the bees, reducing swarming while at the same time increasing honey production. Is all of this too good to be true? That's for the beekeeper to decide, but more and more facts come to the fore each day, and all should be carefully studied before a decision is made to go for broke producing bee collected pollen.
"Under the law, since the pollen has not been shown to be harmful other than to those suffering allergy, bee pollen may be marketed as a food, provided no nutrition or therapeutic claims are made or implied regarding it. Thus, if the labeling (including pamphlets or advertising associated with the product) does not suggest that it is intended for use other than food, bee pollen marketed as a food need only meet the same general labeling requirements as other foods, and be prepared, packed and held in a sanitary manner."The article goes on to say that those who claim bee pollen cures or alleviates any illness or produces therapeutic benefit are promoting the product as a drug. Recently FDA asked that all shipments of a particular product and its promotional literature, advocating use of pollen in this sense, be recalled by the manufacturer. Other steps may also be taken, including seizure, injunction and criminal prosecution.
With reference to bee pollen's value for humans, the article also sets
about debunking some claims made by many promoters:
(1) pollen is not a giant
germ killer in which bacteria do not exist; it is rapidly attacked by bacteria,
yeast and other fungi,
(2) pollen cannot be called nature's most perfect food;
it isn't even perfect for bees which require supplementary carbohydrates
(nectar or honey) to survive,
(3) pollen doesn't retard aging by peoples in the
Caucasus region of Soviet Georgia; a study of eating habits there doesn't even
mention pollen,
(4) pollen is not the richest source of protein known to
science; the major constituent of pollen is carbohydrate, not protein, and the
amount of the latter varies considerably among pollens from various sources,
(5) bee pollen does not relieve allergy, asthma and hay fever; no scientific
studies support this, on the contrary, persons eating pollen must be on the
look out for potential allergic reactions,
(6) pollen improves athletic
performance; extensive study at Louisiana State University reveals no
significant improvement in either training or performance.
"Pollen can be considered either a potential food or a nutrient supplement. Whatever it is considered, potential consumers should be aware that the levels present in half a dozen tablets, or about 3 g, does (sic) not provide nutrients to equal those present in an otherwise unbalanced diet. This is not to suggest that pollen cannot be of any value, only that if pollen is treated as food, more than 6 tablets may be needed to accrue real benefit. When compared to supplements such as vitamin/mineral tablets, pollen contains much lower levels of these micronutrients than the supplements. This...does not imply that pollen has no potential benefit, only that it should not replace good dietary and health practices. Pollen in addition to a good diet could conceivably be beneficial, but to date there is little evidence to support or refute this."It should be emphasized, that the above study was done on bee collected pollen from only one species of plant. Most pollen trapped by beekeepers over time will be a mixture from several plant species. According to Dr. P. Witherell, "Other Products of the Hive," Chapter XVIII, The Hive and the Honey Bee, Dadant & Sons, Inc., Hamilton, IL, 1975, pollen can vary greatly in its nutritional content from as low as seven percent protein (pine) to over thirty-five percent (date palm). Thus, even for bees, a mixture of pollens is necessary to achieve a well balanced diet.
Something addressed by few is the nutritional loss in stored pollen. Study by Dr. A. Dietz at the University of Georgia has shown that stored pollen (especially dried pollen) losses some of its nutritional value for bees over time. Studies of this sort for bee collected pollen in human nutrition might be extremely revealing, but none have been done so far.
The lack of standards in processing bee collected pollen could be a time bomb. As mentioned above, of prime importance to the Food and Drug Administration is that pollen, "...be prepared, packed and held in a sanitary manner." Details as to what this means have not been spelled out, but at any moment FDA could institute specific regulations regarding pollen preparation. A recent article by K. Benson of El Toro California in The Speedy Bee, Vol 13 (5), May 1984, pp. 14,20 deals with this important question. The author emphatically states:
"...collecting pollen commercially is an expensive and labor intensive enterprise that requires mechanization, special training and constant attention. Frequent collection and processing are needed to produce quality pollen. It must be collected, cleaned and frozen quickly before it becomes too dry, too wet, mildewed, ruined by insects, or overflows the pollen drawer. There are no vacations during the pollen season."Of primary concern, the article states, is cleanliness of bee collected pollen. The kinds of debris and foreign matter that can be found in pollen is remarkable. A partial listing includes:
Wax moths also find the pollen drawer as a marvelous haven; their droppings, webs and cocoons must be removed. In addition, a few mouse droppings will render the entire pollen batch unusable and spilled pollen should never be run through a cleaning machine. Competent buyers will not touch pollen that has any beekeeper dirt in it. Mr. Benson has developed a pollen cleaning machine (write Mr. "B", Box 1066, El Toro, CA 92630), but suggests that some hand sorting is invariably necessary in producing a quality product. He also cautions that bee collected pollen must be picked up at regular intervals from traps and protected from moisture; if it becomes wet, it is not salvageable.
Stored pollen is a marvelous medium for growth of fungi and bacteria. Of major concern in moist environments is the ever present threat of aflatoxin, produced by fungi of the Aspergillis genus. Stored products, such as soybeans, peanuts, and corn, in Florida, are carefully monitored for presence of aflatoxin. Bee collected pollen is not usually consumed in as great a quantity as other stored products and is generally quickly dried to below twenty-five percent moisture, optimum for Aspergillis growth, so that danger from this is minimized. However, it nevertheless is a quality factor that cannot be ignored at present, and one ripe for bureaucratic regulation in the future.
"If you put on pollen traps, you should expect certain hive problems that you don't have without them. Don't hurt your bees. Don't force the bees into a pollen deficient diet...My suggestion is that after trapping pollen for two weeks, you should remove the traps for a week."Finally, there is the question of the efficiency of trapping pollen from bees. This varies considerably. A study by Canadians A. Tellier and U. Soehngen, reported in the Cook-Dupage Beekeepers' Association Newsletter, Vol. 39 (5), June 1984, evaluates several traps. According to the authors:
"The Efficiency of pollen traps varies from approximately 10% to 50%. Efficiency is influenced by the uniformity of the openings in the trap, differences in body sizes of the foragers (which may be considerable both between and within colonies), and by the sizes of the pollen loads. In addition, the number of openings in a trap influences the degree of crowding within the trap, and consequently, it efficiency in collecting pollen. It is apparent, therefore, that each colony-trap combination is unieque and that an accurate determination of the efficiency of trap design, derived from observations made on one colony-trap combination is impossible."Their preliminary results (research is continuing) suggest the bottom mounted Barrhead Pollen Trap (manufactured in Canada) to be superior in most trials, providing the greatest quantity of clean pollen. The OAC (Ontario Agricultural College) trap was rated poorest in pollen cleanliness. The front mounted USDA Pollen Trap was second best in terms of pollen production. In general, cleanliness of resulting pollen is not as good in bottom mounted traps, which tend to collect all hive debris, but this is offset by other advantages such as rear drawer removal, protection of collected pollen from the weather and provision for escape of drones and queens.
A design for a do-it-yourself bottom mounted trap was published by the University of Illinois a few years back.
Sincerely,
Malcolm T. Sanford
Bldg 970, Box 110620
University of Florida
Gainesville, FL 32611-0620
Phone (352) 392-1801, Ext. 143 FAX: (352)-392-0190
http://www.ifas.ufl.edu/~entweb/apis/apis.htm
INTERNET Address: MTS@GNV.IFAS.UFL.EDU
©1984 M.T. Sanford "All Rights Reserved