Henri Braconnot
Henri Braconnot (May 29, 1780, Commercy, Meuse – January 15, 1855, Nancy) was a French scientist and drug specialist.
He was conceived in Commercy, his dad being an advice at the nearby parliament. At the demise of his dad, in 1787, Henri started his guideline in a primary school in Commercy and after that with private educators.
At 13, he was put as understudy in a drug store in Nancy where he learned and rehearsed drug store, science, and organic science. At 15, he exited Nancy for a military administration in a doctor's facility in Strasbourg.
In 1801-1802, he lived in Paris where he learnt in different schools, Museum, institute of solution among others, and took after the addresses of Antoine François, comte de Fourcroy, Jean-Baptiste Lamarck and Étienne Geoffroy Saint-Hilaire. He did some concoction examinations on the creation of a fossil horn which were distributed later (J Chim Phys 1806).
From 1802 to his passing, he lived in Nancy where he was named in 1807 as executive of the professional flowerbed and individual from the logical institute of the town. He filled in as a scientific expert until his demise predominantly on plant science. He made a few research on plant osmosis, natural acids, plant structure and fats. He made likewise minor commitments to mineralogy and hydrology.
He was chosen in 1823 reporter individual from the Académie des Sciences in Paris. Until his demise in 1855, he distributed 112 works.
In the fat area, Braconnot portrayed in 1815 that fats are framed of a strong part ("outright fat") and a slick compound ("supreme oil"), their consistency coming about because of the extents of the two sections. This conclusion was acquired in the wake of squeezing fats in the driving rain between channel papers (Ann Chimie 1815, 93, 225). Moreover, after saponification and fermentation Braconnot isolated a strong part like "adipocire" portrayed by Fourcroy (1806). Sadly, he didn't watch its corrosive properties which drove Chevreul to find in 1820 stearic corrosive.
As these information were like the primary information acquired by Chevreul when 1813, the later sent a letter to the diary Annales de Chimie asserting his need and challenging the innovation of Braconnot's work (Ann Chim 1815, 94, 73). As an utilization of his research facility work, it jumped out at Braconnot that the "outright fat" (like stearine) from meat or sheep could be utilized to make candles. He named that substance "céromimène" (wax-like). With Simonin F, a drug specialist in Nancy, he licensed in 1818 a procedure of flame produce. An enhanced procedure utilizing stearic corrosive was licensed by Chevreul seven years after the fact.
In the area of plant science, Braconnot added to the disconnection and the depiction of a few mixes, the vast majority of which were demonstrated later to be blends of less complex items. Among others, Braconnot found gallic and ellagic acids (1818) and pyrogallic corrosive (pyrogallol) which later empowered the improvement of photography. He found likewise in 1811 chitin in mushrooms, the most punctual known polysaccharide. In 1819, he distributed a diary depicting interestingly the transformation of wood, straw or cotton into a sugar by a sulfuric corrosive treatment. The name glucose was proposed 24 years after the fact by Dumas for a sugar comparably acquired from starch, cellulose, or nectar. By a similar corrosive process, Braconnot got a "gelatin sugar" (named later glycocolle, now glycine) from gelatin and leucine from muscle filaments. Moreover, responding focused nitric corrosive on wood or cotton, Braconnot acquired an inflammable item, xyloïdine (a forerunner of collodion and nitrocellulose), which could be changed into a vitreous varnish. This substance might be considered as the main polymer or plastic material made by a scientist.
In 1825, he found an auxiliary heteropolysaccharide, pectin
He was conceived in Commercy, his dad being an advice at the nearby parliament. At the demise of his dad, in 1787, Henri started his guideline in a primary school in Commercy and after that with private educators.
At 13, he was put as understudy in a drug store in Nancy where he learned and rehearsed drug store, science, and organic science. At 15, he exited Nancy for a military administration in a doctor's facility in Strasbourg.
In 1801-1802, he lived in Paris where he learnt in different schools, Museum, institute of solution among others, and took after the addresses of Antoine François, comte de Fourcroy, Jean-Baptiste Lamarck and Étienne Geoffroy Saint-Hilaire. He did some concoction examinations on the creation of a fossil horn which were distributed later (J Chim Phys 1806).
From 1802 to his passing, he lived in Nancy where he was named in 1807 as executive of the professional flowerbed and individual from the logical institute of the town. He filled in as a scientific expert until his demise predominantly on plant science. He made a few research on plant osmosis, natural acids, plant structure and fats. He made likewise minor commitments to mineralogy and hydrology.
He was chosen in 1823 reporter individual from the Académie des Sciences in Paris. Until his demise in 1855, he distributed 112 works.
In the fat area, Braconnot portrayed in 1815 that fats are framed of a strong part ("outright fat") and a slick compound ("supreme oil"), their consistency coming about because of the extents of the two sections. This conclusion was acquired in the wake of squeezing fats in the driving rain between channel papers (Ann Chimie 1815, 93, 225). Moreover, after saponification and fermentation Braconnot isolated a strong part like "adipocire" portrayed by Fourcroy (1806). Sadly, he didn't watch its corrosive properties which drove Chevreul to find in 1820 stearic corrosive.
As these information were like the primary information acquired by Chevreul when 1813, the later sent a letter to the diary Annales de Chimie asserting his need and challenging the innovation of Braconnot's work (Ann Chim 1815, 94, 73). As an utilization of his research facility work, it jumped out at Braconnot that the "outright fat" (like stearine) from meat or sheep could be utilized to make candles. He named that substance "céromimène" (wax-like). With Simonin F, a drug specialist in Nancy, he licensed in 1818 a procedure of flame produce. An enhanced procedure utilizing stearic corrosive was licensed by Chevreul seven years after the fact.
In the area of plant science, Braconnot added to the disconnection and the depiction of a few mixes, the vast majority of which were demonstrated later to be blends of less complex items. Among others, Braconnot found gallic and ellagic acids (1818) and pyrogallic corrosive (pyrogallol) which later empowered the improvement of photography. He found likewise in 1811 chitin in mushrooms, the most punctual known polysaccharide. In 1819, he distributed a diary depicting interestingly the transformation of wood, straw or cotton into a sugar by a sulfuric corrosive treatment. The name glucose was proposed 24 years after the fact by Dumas for a sugar comparably acquired from starch, cellulose, or nectar. By a similar corrosive process, Braconnot got a "gelatin sugar" (named later glycocolle, now glycine) from gelatin and leucine from muscle filaments. Moreover, responding focused nitric corrosive on wood or cotton, Braconnot acquired an inflammable item, xyloïdine (a forerunner of collodion and nitrocellulose), which could be changed into a vitreous varnish. This substance might be considered as the main polymer or plastic material made by a scientist.
In 1825, he found an auxiliary heteropolysaccharide, pectin
