Research team compared fields and fruits in heart of nation’s strawberry patch

PULLMAN, Wash.—Side-by-side comparisons of organic and conventional strawberry farms and their fruit found the organic farms produced more flavorful and nutritious berries while leaving the soil healthier and more genetically diverse.

“Our findings have global implications and advance what we know about the sustainability benefits of organic farming systems,” said John Reganold, Washington State University Regents professor of soil science and lead author of a paper published today in the peer-reviewed online journal, PLoS ONE. “We also show you can have high quality, healthy produce without resorting to an arsenal of pesticides.”

The study is among the most comprehensive of its kind, analyzing 31 chemical and biological soil properties, soil DNA, and the taste, nutrition and quality of three strawberry varieties on more than two dozen commercial fields—13 conventional and 13 organic.

“There is no paper in the literature that comprehensively and quantitatively compares so many indices of both food and soil quality at multiple sampling times on so many commercial farms,” said Reganold. Previous Reganold studies of “sustainability indicators” on farms in the Pacific Northwest, California, British Columbia, Australia, and New Zealand have appeared in the journals Science, Nature, and Proceedings of the National Academy of Sciences.

All the farms in the current study were in California, home to 90 percent of the nation’s strawberries and the center of an ongoing debate about the use of soil fumigants. Conventional farms in the study used the ozone-depleting methyl bromide, which is slated to be replaced by the highly toxic methyl iodide over the protests of health advocates and more than 50 Nobel laureates and members of the National Academy of Sciences. In July, California Sen. Dianne Feinstein asked the EPA to reconsider its approval of methyl iodide.

Reganold’s study team included Preston Andrews, a WSU associate professor of horticulture, and seven other experts, mostly from WSU, to form a multidisciplinary team spanning agroecology, soil science, microbial ecology, genetics, pomology, food science, sensory science, and statistics. On almost every major indicator, they found the organic fields and fruit were equal to or better than their conventional counterparts.

Among their findings:

• The organic strawberries had significantly higher antioxidant activity and concentrations of ascorbic acid and phenolic compounds.
• The organic strawberries had longer shelf life.
• The organic strawberries had more dry matter, or, “more strawberry in the strawberry.”
• Anonymous testers, working at times under red light so the fruit color would not bias them, found one variety of organic strawberries was sweeter, had better flavor, and once a white light was turned on, appearance. The testers judged the other two varieties to be similar.

The researchers also found the organic soils excelled in a variety of key chemical and biological properties, including carbon sequestration, nitrogen, microbial biomass, enzyme activities, and micronutrients.

DNA analysis found the organically managed soils had dramatically more total and unique genes and greater genetic diversity, important measures of the soil’s resilience to stress and ability to carry out essential processes.

Reference: Washington State University, Study finds commercial organic farms have better fruit and soil, lower environmental impact, 1-Sep-2010.

Photo: John Reganold

Ozone affects pollen allergens: at ozone levels typical of photochemical smog, more allergens are formed in pollen. This connection has been demonstrated in the rye plant and is now being published in the prestigious Journal of Allergy Clinical Immunology. The project funded by the Austrian Science Fund FWF shows that elevated ozone levels during maturation increase the protein and allergen contents of rye pollen. This points to a relationship between current environmental problems due to climate change and the rise in allergies.

It’s on everyone’s lips, especially during the summer months when photochemical smog engulfs the world’s cities. Environmental pollution and climate change both contribute to the increasingly frequent incidences observed. While this is a major health problem in itself, there are now indications that elevated ozone levels also raise the allergen content of pollen. A team from the Medical University of Vienna and the Austrian Institute of Technology have investigated the reasons for this phenomenon.

Ozone Stimulates Rye

The team behind project leader Prof. Rudolf Valenta of the Centre for Pathophysiology, Infectiology and Immunology at the Medical University of Vienna cultivated two different rye cultivars under controlled environmental conditions. One group of plants was exposed to elevated ozone concentrations (79 parts per billion) for part of the time. This value is more than three times the normal ozone concentration at ground level, i.e. 22 ppb, and corresponds to the health-endangering peak values that occur on hot days in Vienna. A control group was grown at normal ozone levels for subsequent comparison with the high-ozone group.

When the pollen was mature, it was harvested and collected for further study. It yielded very convincing results, as Prof. Valenta explains: “First, we were able to show that the higher ozone concentrations led to a marked elevation of the protein content in both cultivars. Further analysis showed that allergens of groups 1, 5 and 6 contribute to this increase, as does another allergen, profilin. Even in the second rye cultivar, increased ozone exposure during pollen maturation led to a sharp rise in group 1 allergens and profilin.”

Allergen = Allergy?

This result alone would seem to show that higher ozone levels can increase the allergic potential of certain grasses. However, “more allergens” does not necessarily translate to “more allergies”. It was clear to Prof. Valenta and his team that potential allergens are not always recognized by the immune system and therefore do not always give rise to allergies. “A study from 2007 shows that ozone can actually decrease the allergenicity of rye allergens,” comments Prof. Valenta. “So there may be more allergens, as our work shows, but whether these would react with human IgE antibodies and cause actual allergies was not clear.”

However, another experiment soon provided a clear answer to this question: protein extracts from both rye cultivars were incubated with IgE antibodies from allergic patients. The results showed that the protein extracts from ozone-stressed plants reacted more strongly with the IgE antibodies, which are involved in allergic reactions, than those of the control plants, meaning that the former are more allergenic.

Consequently, the team around Prof. Valenta, Dr. Thomas Reichenauer and Prof. Verena Niederberger, managed to demonstrate in this FWF-funded project in a well controlled set of experiments that environmental problems such as rising ozone concentrations at ground level may bear some of the responsibility for the constant increase in allergic disorders in our society in recent years.

References:

VWF, Allergies through Ozone Effects? Ozone Increases Allergen Load, Vienna, 23.08.2010

Original publication: Exposure of rye (Secale cereale) cultivars to elevated ozone levels increases the allergen content in pollen, J. Eckl-Dorna, B. Klein, T.G. Reichenauer, V. Niederberger, R. Valenta, J Allergy Clin Immunol. doi:10.1016/j.jaci.2010.06.012

Photo: Monika Grote

Health conscious consumers who hesitate at the price of fresh blueberries and blackberries, fruits renowned for high levels of healthful antioxidants, now have an economical alternative, scientists reported here today at the 240th National Meeting of the American Chemical Society (ACS). It is black rice, one variety of which got the moniker “Forbidden Rice” in ancient China because nobles commandeered every grain for themselves and forbade the common people from eating it.

“Just a spoonful of black rice bran contains more health promoting anthocyanin antioxidants than are found in a spoonful of blueberries, but with less sugar and more fiber and vitamin E antioxidants,” said Zhimin Xu, Associate Professor at the Department of Food Science at Louisiana State University Agricultural Center in Baton Rouge, La., who reported on the research. “If berries are used to boost health, why not black rice and black rice bran? Especially, black rice bran would be a unique and economical material to increase consumption of health promoting antioxidants.”

Like fruits, “black rice” is rich in anthocyanin antioxidants, substances that show promise for fighting heart disease, cancer, and other diseases. Food manufacturers could potentially use black rice bran or the bran extracts to boost the health value of breakfast cereals, beverages, cakes, cookies, and other foods, Xu and colleagues suggested.

Brown rice is the most widely produced rice variety worldwide. Rice millers remove only the outer husks, or “chaff,” from each rice grain to produce brown rice. If they process the rice further, removing the underlying nutrient rich “bran,” it becomes white rice. Xu noted that many consumers have heard that brown rice is more nutritious than white rice. The reason is that the bran of brown rice contains higher levels of gamma-tocotrienol, one of the vitamin E compounds, and gamma-oryzanol antioxidants, which are lipid-soluble antioxidants. Numerous studies showed that these antioxidants can reduce blood levels of low-density lipoprotein cholesterol (LDL) — so called “bad” cholesterol — and may help fight heart disease. Xu and colleagues analyzed samples of black rice bran from rice grown in the southern United States. In addition, the lipid soluble antioxidants they found in black rice bran possess higher level of anthocyanins antioxidants, which are water-soluble antioxidants. Thus, black rice bran may be even healthier than brown rice bran, suggested Dr. Xu.

The scientists also showed that pigments in black rice bran extracts can produce a variety of different colors, ranging from pink to black, and may provide a healthier alternative to artificial food colorants that manufacturers now add to some foods and beverages. Several studies have linked some artificial colorants to cancer, behavioral problems in children, and other health problems.

Black rice is used mainly in Asia for food decoration, noodles, sushi, and pudding. Dr. Xu said that farmers are interested in growing black rice in Louisiana and that he would like to see people in the country embrace its use.

Reference:

American Chemical Society, Black rice rivals pricey blueberries as source of healthful antioxidants, Boston, August 26, 2010.

Photo: Anna Frodesiak

The broadest possible integration of disabled people is the goal of all countries which are signatories to the UN Disabilities Convention. The countries which have signed this convention and ratified it, may be viewed here:

Rights and Dignity of Persons with Disabilities

This internationally binding document has validity for those countries who have signed and ratified it. Direct efforts should have been pursued by the signatories so that all disabled children receive an education. No disability must be preferred over an other. MCS – Multiple Chemical Sensitivity is a physically caused disability which needs recognition in the educational realm.

In the U.S. and Canada, there is a steady growing number of schools and local univer- sities that are integrating policies for chemically injured students and adapting conditions to include this disability. The transition has been mainly on a volunteer basis initially, with perfume bans and an effort to use chemically free cleaning products.

Students with MCS

There are severe cases of children and young teens with chemical compromises which seem to have little hope of a successful future due to their disability. The chemical triggers are so overwhelming on their various physical systems that they are unable to attend a traditional school setting without well thought out appropriate accommodations.

A big problem for these students in traditional school settings is falling behind academically. Due to their reaction difficulties at school, they miss a lot of instructional time. Parents report their children missing hours, days, and sometimes months of school , and trying to catch up at home with all the required instructional materials from the teacher(s) is extremely difficult.

Then there is often trouble with the school or school authorities. Whether the modifications for these disabled students will be feasible to get the education requirements needed depends on the consideration of the school, the classmates, building maintenance, chemical substances used at the school site, in and outside the individual classroom.

Questions to be answered in individual countries:

• How does my country integrate children and young people who have chemical sensitivity?
• What are the guidelines for dealing with chemically sensitive students in a traditional school setting or what accommodations can the school offer?
• Are schools in my country responsive to students with MCS?
• Do authorities in my country have policies in place which enable chemically sensitive students to achieve a quality education?
• Does my country cover free internet schooling education for students suffering with chemical sensitivities?
• What policies would schools have to change in order to successfully integrate students with MCS?

Series:  “The Danish MCS Research Centre in the International Field of Vision”

Part III:

Until 2008 it was a common practice in Denmark for local authorities to grant severe MCS sufferers free aid under the service law, section 122, by giving them half mask respirators with activated charcoal filters.

In 2008 a severe female MCS sufferer had her application rejected by the local authorities for this respirator. This case ended at the Danish appeals board, which upheld the rejection on the following grounds:

“…there is no medical documentation for the chronic manifestations of the disease (MCS), its causality, lack of diagnostic criteria and treatment, as well as there is no medical documentation that the mask can sufficiently remedy functionality in her daily life.”

After this incident, a number of MCS patients had their grants for the respirators with filters also suspended by their local authorities, referring to the above ruling.

At the same time, there is no hospital ward in Denmark at all that is committed to examine, diagnose, treat and/or guide this group of severe MCS suffers. All instances refer to the Research Center for Chemical Sensitivities in Copenhagen, which was established in 2006 with minimal grants, but which does not occupy itself with MCS patients, except for using them as test subjects in PhD studies or projects.

The Research Center denies research effects of mask respirators on the MCS population

After the ruling by the appeals board, a great number of MCS sufferers contacted the Research Center to make them document the effects of the respirators with filters for the MCS population, since these are for the time being, the only efficient treatment option for those with MCS, besides the so-called avoidance strategy which leads to social isolation and thus to the possible risk of a subsequent psychological impairment due to isolation from the outside world in the MCS patient’s life. However, this isolation can be reduced by wearing a mask respirator.

To the MCS sufferers’ great astonishment and despair, the Research Center, however, published on its homepage that they were not going to research the effects of half mask respirators with activated charcoal filters on the MCS population. Their arguments, were among others, was that an investigation into the effects of mask respirators on MCS sufferers would require a clinically controlled study, and such a study must be both placebo-controlled and double-blind in order for the results to become reliable and useful.

Thus, the Research Center does not prioritize spending research funds on a study of mask respirators, but focuses instead on researching possible disease mechanisms and other therapy strategies. (1)

In this way, Danish MCS sufferers can see no prospect of anyone obtaining the documentation required by the Danish social system. Thus there is no prospect of being granted mask respirators, the aid which is extremely vital for sufferers – a crazy paradox not worthy of a modern welfare society.

Instead, the Research Center regards electroconvulsive therapy of MCS sufferers as interesting

Simultaneously with the above, the Research Center was following a male MCS sufferer who accepted being subjected to electroconvulsive therapy over six months (at first eight electroshock treatments over three weeks, and after that every two weeks), and on the basis of this one MCS patient’s subjective evaluation of the effect of this electroconvulsive therapy – a ”study” that, of course, was neither placebo-controlled nor double-blind – the Research Center published a scientific article: ”Electro- convulsive Therapy Substantially Reduces Symptom Severity and Social Disability Associated With Multiple Chemical Sensitivity: A Case Report. “Elberling et al. (2) with this conclusion: “In this case, a substantial, positive effect on symptom severity and social disability related to MCS was obtained by an initial somatizing patients course and maintenance treatment. Electroconvulsive therapy should be considered an option in severe and socially disabling MCS, but more studies are needed to evaluate if ECT can be recommended as a treatment for MCS.”

The limited research funds are gladly spent on Mindfulness therapy

Also, the Research Center is planning to spend its very limited funds to research the effects of Mindfulness based cognitive therapy on MCS.

In 2008 the Research Center performed a pilot project study in cooperation with the Center of Psychiatry, The Copenhagen University Hospital, where the title of this pilot project on the homepage of the Copenhagen University Hospital was ”Mindfulness based cognitive therapy of somatizing patients, primarily MCS patients.”

However, this title was in haste changed to: “The Effects of Mindfulness Based Cognitive Therapy with Persons with Hypersensitivity to Fragrances and Chemical Substances,” since MCS sufferers found out that the Research Center, in cooperation with the Center of Psychiatry, considered them mentally ill. Jesper Elberling, the then scientific leader of the Research Center, had meanwhile passed it all off as a “mistake.”

Right now, in continuation of this above-mentioned pilot project, a PhD study is being planned, to investigate the effect of Mindfulness on the MCS population. This is obviously one of those therapy strategies in which the Research Center gladly prioritizes its limited research funding, notwithstanding that Danish MCS sufferers again and again have told the Research Center that mask respirators are an efficient therapy strategy, whereas no one has ever heard or hears about MCS sufferers who have experienced any effects on their MCS from Mindfulness therapy.

Will the Research Center follow its own persistence and demand the placebo-controlled and double-blind studies in its coming research?

In the near future, the Research Center will start up its new study on the effects of Mindfulness therapy on MCS, and we shall then see if the Research Center will actually live up to its own demands and arguments that therapy effects require [DP1] a clinically controlled study, which is both placebo controlled and double-blind, in order for the results to become reliable and useful.

These demands apply hopefully not only for therapy forms, (the effects of which the Research Center does not want to document), such as half mask respirators with activated charcoal filters that are indeed vital to most severe MCS patients, and at the moment are the only treatment strategy that gives MCS sufferers the temporary possibility of being able to move about in the public domain, and which severe MCS sufferers experience as a highly efficient therapy strategy. However this highly efficient therapy strategy lacks – according to the Research Center – ”scientific documentation” which apparently nobody in Denmark wants to obtain.

Author: Bodil Dam Bak Nielsen, Denmark

Translation: Dorte Pugliese for CSN – Chemical Sensitivity Network

Series:  “The Danish MCS Research Centre in the International Field of Vision”

Part I: MCS – Multiple Chemical Sensitivity: A Report from Denmark

Part II:Changes of the international science of chemical sensitivity at the Danish Research Centre for Chemical Sensitivities?