Food Chemistry Food Chemistry 95 (2006) 180–185 www.elsevier.com/locate/foodchem Antioxidant activity and hepatoprotective potential of Phyllanthus niruri R. Harish‚ T. Shivanandappa * Department of Food Protectants and Infestation Control‚ Central Food Technological Research Institute‚ Mysore 570 020‚ India Received 5 April 2004; received in revised form 25 November 2004; accepted 25 November 2004 Abstract Antioxidant activity and hepatoprotective potential of Phyllanthus niruri
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between binary acids and oxyacids in terms of their component elements and the systems used in naming them. b. Give three examples of each type of acid. - Binary acids contain H atoms (which are released as H+ when the acid is dissolved) and a simple anion such as Cl- or Br - or S2-‚ while oxyacids contain H atoms and an oxyanion such as SO42- or NO3-. Two examples of binary are hydrochloric and hydrofluoric acid‚ and two examples of oxyacid are sulfuric and nitric. 3. Identify and describe the
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Chemistry and Us The world is surrounded by so many things and everything is made of chemicals. Chemistry is very vital because it helps us to know the composition and changes of matter. Every single day of our life passes through chemistry in many ways. Human body works through the chemical reactions happening inside it. When we breathe‚ eat and sleep there’s still the presence of chemistry. The oxygen and foods we take helps our body to work. Exchanges of gasses‚ breaking down of foods we
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Science 1. A‚ because organisms need carbohydrate‚ vitamins‚ and minerals and other nutrients to gain energy and proteins to live and to continue metabolism. B‚ The amount of energy stored in macromolecules varies because their chemicals structures‚ and there for the energy contain in their chemical differ. 2. 6O2 + 62H1206 -> 6O2 + 6H2O + Energy B The process of cellular respiration provides the energy a cell needs to carry processes‚ which in turn control the cell’s internal conditions.
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Green Chemistry Many companies all over the world produce chemicals for their products that are harmful to the environment‚ human health‚ and to all living species. Green Chemistry is the use of chemistry for the prevention of chemical pollution to the environment by using chemicals that are benign‚ or not harmful. The Environmental Protection Agency (EPA) states that the mission of Green Chemistry is‚ "To promote innovative chemical technologies that reduce or eliminate the use or generation
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centuries has produced results over which opinion is sharply divided. Science‚ originally intended to conquer and harness the forces of nature for the good of man‚ is looked upon by some as the chief cause of the suffering of humanity today. On’the other hand‚ there are a good many people who consider science to be the harbinger of all progress‚ prosperity and comfort. The contro¬versy has been raging for a long time‚ though science goes on taking long strides .obviously regardless of the conflicting
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IGCSE Directed Writing The expansion of the air travel industry is beginning to raise many thoughts and disclaims‚ as the myth following the airplanes greenhouse gas emission is convincing more and more people‚ as the tension concerning the global warming is rising at an alarming stage. But still‚ others think differently‚ bringing somehow incertitude on the subject. We will try‚ in this article‚ to reveal the truth about the air industry‚ and to discard any false thesis. Many theories
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Other Names Candidate Signature Candidate Number For Examiner’s Use Examiner’s Initials Question Mark General Certificate of Secondary Education Higher Tier January 2012 1 2 3 4 5 TOTAL Science B Unit Chemistry C1 CHY1H Chemistry Written Paper Unit Chemistry C1 H Thursday 26 January 2012 You will need no other materials. You may use a calculator. 9.00 am to 9.45 am Time allowed 45 minutes Instructions Use black ink or black ball-point pen. Fill
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1 Class XII Chemistry Ch 5: Surface Chemistry Chapter Notes Top Concepts / Key learnings: 1. 2. 3. 4. 5. 6. Adsorption: The accumulation of molecular species at the surface rather than in the bulk of a solid or liquid is termed as adsorption. Adsorbate: The substance which is being adsorbed on the surface of another substance is called adsorbate. Adsorbent: The substance present in bulk‚ on the surface of which adsorption is taking place is called adsorbent. Desorption: The process of removing an
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Chem 30A Ch.1-4: Condensed Chang’s Class Notes Chapter 1 Valence electrons octet rule exceptions P and S can have 10 or 12 valence e- B and Al (Group 3) can have 6 valence e- electronegativity- how much an atom wants e- < 0.5 = nonpolar‚ covalent (i.e. H2) 0.5 - 1.9 = polar covalent direction of polarity (using arrow and delta symbol) overall dipole > 1.9 = ionic formation of ions fish-hook arrow Lewis structure formal charge Functional Groups Molecular Shape VSEPR (Valence Shell
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