Irwin Stone (1907–1984) was an American

biochemist Biochemists are scientists who are trained in biochemistry. They study chemical processes and chemical transformations in living organisms. Biochemists study DNA, proteins and Cell (biology), cell parts. The word "biochemist" is a portmanteau of ...

chemical engineer In the field of engineering, a chemical engineer is a professional, equipped with the knowledge of chemical engineering, who works principally in the chemical industry to convert basic raw materials into a variety of products and deals with the ...

, and writer. He was the first to use

ascorbic acid Vitamin C (also known as ascorbic acid and ascorbate) is a water-soluble vitamin found in citrus and other fruits and vegetables, also sold as a dietary supplement and as a topical 'serum' ingredient to treat melasma (dark pigment spots) an ...

in the

food processing Food processing is the transformation of agricultural products into food, or of one form of food into other forms. Food processing includes many forms of processing foods, from grinding grain to make raw flour to home cooking to complex industr ...

industry as a

preservative A preservative is a substance or a chemical that is added to products such as food products, beverages, pharmaceutical drugs, paints, biological samples, cosmetics, wood, and many other products to prevent decomposition by microbial growth or by ...

, and originated and published the hypothesis that humans require much larger amounts of

Vitamin C Vitamin C (also known as ascorbic acid and ascorbate) is a water-soluble vitamin found in citrus and other fruits and vegetables, also sold as a dietary supplement and as a topical 'serum' ingredient to treat melasma (dark pigment spots) an ...

for optimal health than is necessary to prevent

scurvy Scurvy is a disease resulting from a lack of vitamin C (ascorbic acid). Early symptoms of deficiency include weakness, feeling tired and sore arms and legs. Without treatment, decreased red blood cells, gum disease, changes to hair, and bleeding ...

Food preservative work

In 1934, Stone, while director of the enzyme and fermentation research laboratory for the Wallerstein Company, worked on the antioxidant properties of ascorbate (also known as Vitamin C), which had then recently been described by

Albert Szent-Györgyi Albert Imre Szent-Györgyi de Nagyrápolt ( hu, nagyrápolti Szent-Györgyi Albert Imre; September 16, 1893 – October 22, 1986) was a Hungarian biochemist who won the Nobel Prize in Physiology or Medicine in 1937. He is credited with fi ...

only two years earlier. He was awarded 26 patents in industrial chemistry, mainly related to fermentation science, pharmaceutical techniques, and nutrient cultivation.Nutrition Toda
v. 20 (January/February 1985)
p. 30. He discovered he could use ascorbate to keep foodstuffs fresh for longer, limiting the effects of exposure to air and oxidation. Stone obtained the first patents on an industrial application of ascorbic acid with three patent applications filed in 1935 and granted in 1939 and 1940.

Hypoascorbemia hypothesis

Stone's research in ascorbic acid continued and led to his interest in the disease,

. By the late 1950s, Stone had formulated his hypothesis that scurvy was not a dietary disturbance, but potentially a flaw in human

genetics Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar wor ...

that had suppressed an essential part of the mammalian

biochemistry Biochemistry or biological chemistry is the study of chemical processes within and relating to living organisms. A sub-discipline of both chemistry and biology, biochemistry may be divided into three fields: structural biology, enzymology and ...

and had been misunderstood by nutritionists. He proposed the name hypoascorbemia for the effects of this genetic defect. He proposed that ascorbate was not a

vitamin A vitamin is an organic molecule (or a set of molecules closely related chemically, i.e. vitamers) that is an Nutrient#Essential nutrients, essential micronutrient that an organism needs in small quantities for the proper functioning of its ...

required only in trace amounts, but was required by humans in relatively large daily quantities. He produced four papers, between 1965 and 1967, describing what he considered the true human requirement for ascorbate. Stone experienced great difficulty in getting his ideas published. However, following his retirement from his position as chemist from the Wallerstein company in 1971, he worked full-time on studying ascorbate. In 1972 he published the book, ''The Healing Factor''. Irwin Stone introduced

Linus Pauling Linus Carl Pauling (; February 28, 1901August 19, 1994) was an American chemist, biochemist, chemical engineer, peace activist, author, and educator. He published more than 1,200 papers and books, of which about 850 dealt with scientific top ...

and is recognised within

orthomolecular medicine Orthomolecular medicine is a form of alternative medicine that aims to maintain human health through nutritional supplementation. The concept builds on the idea of an optimal nutritional environment in the body and suggests that diseases reflect ...

as one of its founders. Both Linus Pauling and Albert Szent-Györgyi wrote forewords to ''The Healing Factor'' endorsing his ideas.Forewords by Linus Pauling and Albert Szent-Györgyi to Irwin Stone's* ''The Healing Factor''
published 1972

Food preservative work

Hypoascorbemia hypothesis

See also

References

See also