Precious metal catalysts replaced with polymer-supported iron –Highly efficient iron(0) nanoparticle-catalyzed hydrogenation in water in flow

Graphical abstract: Highly efficient iron(0) nanoparticle-catalyzed hydrogenation in water in flow
Paper

Highly efficient iron(0) nanoparticle-catalyzed hydrogenation in water in flow

 
*
Corresponding authors
a
Centre in Green Chemistry and Catalysis, Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, Canada
b
Division of Complex Catalysis, Institute for Molecular Science, Okazaki, Japan

c
RIKEN Center for Sustainable Resource Science, 2-1 Hirowasa, Wako, Japan
Green Chem., 2013, Advance Article

DOI: 10.1039/C3GC40789F
Received 26 Apr 2013, Accepted 13 Jun 2013
First published online 27 Jun 2013

 
 
Highly efficient catalytic hydrogenations are achieved by using amphiphilic polymer-stabilized Fe(0) nanoparticle (Fe NP) catalysts in ethanol or water in a flow reactor.
Alkenes, alkynes, aromatic imines and aldehydes were hydrogenated nearly quantitatively in most cases.
Aliphatic amines and aldehydes, ketone, ester, arene, nitro, and aryl halide functionalities are not affected, which provides an interesting chemoselectivity.
The Fe NPs used in this system are stabilized and protected by an amphiphilic polymer resin, providing a unique system that combines long-term stability and high activity. The NPs were characterized by TEM of microtomed resin, which established that iron remains in the zero-valent form despite exposure to water and oxygen.
The amphiphilic resin-supported Fe(0) nanoparticles in water and in flow provide a novel, robust, cheap and environmentally benign catalyst system for chemoselective hydrogenations.
 
 

 
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Catalytic deoxygenation of microalgae oil to green hydrocarbons

Green Chem., 2013, 15,1720-1739
DOI: 10.1039/C3GC40558C, Critical Review
Chen Zhao, a, Thomas Bruck, b, Johannes A. Lercher, ac,
Department of Chemistry and Catalysis Research Center, Technische Universität München, Garching D-85747, Germany
b
Industrial Biocatalysis, Department of Chemistry, Technische Universität München, Garching D-85747, Germany
c
Institute for Integrated Catalysis, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, USA

Catalytic routes for conversion of microalgae oil to green hydrocarbons.

Catalytic deoxygenation of microalgae oil to green hydrocarbons

Microalgae are high potential raw biomass material for triglyceride feedstock, due to their high oil content and rapid growth rate, and because algae cultivation does not compete with edible food on arable land. This review addresses first the microalgae cultivation with an overview of the productivity and growth of microalgae, the recovery of lipids from the microalgae, and chemical compositions of microalgae biomass and microalgal oil. Second, three basic approaches are discussed to downstream processing for the production of green gasoline and diesel hydrocarbons from microalgae oil, including cracking with zeolite, hydrotreating with supported sulfided catalysts and hydrodeoxygenation with non-sulfide metal catalysts. For the triglyceride derived bio-fuels, only “drop-in” gasoline and diesel range components are discussed in this review.

http://pubs.rsc.org/en/Content/ArticleLanding/2013/GC/C3GC40558C?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+rss%2FGC+%28RSC+-+Green+Chem.+latest+articles%29

 

Top ten Superfoods for Weight Reduction

Weight loss

Superfoods are identified for their substantial antioxidant material which is advantageous for health. Hence, demolish totally free radicals and reduce the chance of particular conditions.

Additionally, they are minimal in energy but substantial in nutrition and fiber. Hence, they promote bodyweight loss as they preserve you total without having getting to take in surplus energy.

These nutrient-dense nevertheless minimal-calorie foodstuff supply ample energy to your entire body. Furthermore, the antioxidants aid enhance your metabolism, take away toxic compounds from the entire body, and stimulate the human body to burn up calories and unwanted fat.

So, if you are striving to get a slimmer physique naturally without having compromising on wellness, right here are 10 superfoods that are best for this job.

 

 

Grapefruit

Research has proven that taking in 50 percent a grapefruit or drinking a serving of grapefruit juice just before meals, a few occasions in a day decreases hunger and encourages fat reduction.

It is considered that the chemical properties of this fruit help in decreasing insulin stages, which in turn encourages bodyweight decline due to the fact it aids in the regulation of excess fat metabolic process.

In addition, getting a dietary powerhouse of vitamin C, this superfoodstrengthens the immune method. Grapefruits, specifically white grapefruits, are also abundant in selenium which performs an critical part in the fat burning capacity and fights in opposition to totally free radical injury. In addition, it aids in hair development.

Blueberries

Blueberries are deemed as the ideal berries for fat reduction because they are substantial in antioxidants. In addition, the catechins found in this fruit affect specific genes that control the process of body fat burning and storage, specially in abdominal fat cells.

Consequently, if you are bothered about that protruding tummy, make positive you incorporate this tasty superfood in your diet program. Blueberries are also known for their cardio-protecting and cognitive benefits.

Additionally, the phytonutrients referred to as proanthocyanidins present in blueberries have anti-growing older homes. Apart from blueberries, you can also have other berries like blackberries, raspberries, strawberries, and many others. to aid weight decline.

Yogurt

Lower-body fat simple yogurt serves as an excellent superfood to support you lose lbs .. Like other dairy items, it contains protein, calcium, iron, and other nutrients. One more reward of protein is that it helps make you feel fuller for lengthier and therefore, assists minimize food cravings and senseless eating.

In addition to, Greek yogurt is made up of far more protein than simple, lower-fat yogurt. Moreover, it is a female&rsquos ideal friend simply because a serving of Greek yogurt offers practically one particular-fourth of a girl&rsquos everyday calcium demands.

Hence, make positive you integrate this superfood in your typical diet regime. In addition, you can appreciate delicious yogurt smoothies and use it as a substitute for mayonnaise or bitter product.

Oats

Oats are extremely absorbent and are prosperous in fiber. Hence, they produce a emotion of fullness, thus killing your hunger pangs. It generates a gummy layer in the intestines, which reduces the charge of carbohydrate absorption and stabilizes blood sugar ranges.

In addition, oatmeal encourages digestion, lowers cholesterol (specially poor cholesterol), minimizes hypertension possibilities, and provides a good deal of strength.

So, you can start your day with a bowl of healthful oatmeal, if possible combined with fruits and nuts. In addition, you can create a savory recipe utilizing oatmeal, flaky sea salt, olive oil, freshly floor black pepper, and aged sharp cheddar cheese.

Olive Oil

Your weight-decline diet plan is very likely to be incomplete if you do not include olive oil in it. Olive oil is loaded with anti-oxidants and oleic acid (a monosaturated fat) which is deemed healthier.

It raises your emotion of satiety soon after you have a food. Furthermore, it lowers cholesterol ranges and that’s why, decreases the danger of heart illness.

Thus, you can extra-virgin olive oil in your salad dressings and bread dips. Apart from, you can sauté healthier veggies in this oil. Even though olive oil is healthier and suppresses hunger, you nevertheless require to have it in moderation.

Tomato

Owing to its lower calorific worth and higher fiber material, tomato is regarded as as organic bodyweight reduction food. It is packed with antioxidant. To derive optimum advantage, it is recommended to consumetomatoes with their seeds and peels because they contain fiber.

Because of the fiber, tomatoes help suppress overeating. Moreover, it is believed that tomatoes tend to change the stages of hormones that control urge for food. In addition, they are rich in lycopene, an antioxidant that plays a critical role in decreasing the threat of most cancers.

Cayenne Pepper

Cayenne pepper and other hot peppers like Jalapeno, Serrano, Tabasco, Habanero chili, Thai pepper, and so on are very beneficial for weight decline.

Cayenne pepper, in specific, aids in dropping extra excess weight by making warmth in the physique boosting the calorie burning exercise. It has an lively ingredient known as capsaicin that raises your metabolism, curbs urge for food, and aids burn excess fat.

Moreover, it clears congestions, strengthens the immunity, regulates blood sugar stages, prevents ulcers, shields the coronary heart, and functions as aall-natural blood thinner. So, contemplate adding spicy cayenne pepper powder in your soups, stews, and favorite recipes.

In addition, you can have cayenne pepper tea well prepared by incorporating a teaspoon of cayenne pepper, two tablespoons of lemon juice, two tablespoons of maple syrup, and some ginger.

Apart from decreasing fat, it detoxifies the physique, soothes ulcers, andfights off colds. If you cannot have spicy food then you may possibly just take cayenne powder capsules, twice daily.

Pine Nuts

Pine nuts are packed with protein and monosaturated fat that get rid of triglycerides and defend in opposition to coronary heart condition. In addition, the fatty acids existing in these tiny however delicious nuts suppress your urge for food and aid you feel fuller.

This healthful food also consists of vitamin B1, vitamin B2, vitamin B3, vitamin E, beta carotene, iron, magnesium, and zinc.

Apart from advertising satiety and cardiovascular well being, pine nuts assist in digestion, reduce gastrointestinal troubles, and manage autoimmune andinflammatory diseases.

Broccoli

Broccoli and other cruciferous greens this kind of as cabbage, kale, cauliflower, Brussels sprouts, Swiss chard, and so on. decrease your chance of weight problems simply because they are loaded with folate. In addition, higher folate amounts also help your get rid of more excess weight for the duration of dieting.

It is a B vitamin that operates with vitamin B12 and vitamin C to control insulin levels and metabolize proteins. Furthermore, folic acid boosts thebody&rsquos metabolic rate rate, slows down the body fat accumulation approach by breaking down fats into fatty acids and glycerol to provide vitality.

Additionally, being abundant in vitamin C, calcium, beta carotene, fiber, and so on, broccoli is excellent for your total health and properly becoming as it lowers the threat of developing quite a few diseases like cancers, coronary heart disease, cataract, higher blood strain, and so on.

Quinoa

Quinoa is an superb supply of nutritional fiber, protein, and complicated carbohydrates. In truth, the amount of protein found in quinoa is equivalent to the quantity of protein in milk which is deemed as one of the ideal resources of protein.

So, quinoa aids to keep total for a more time time. Getting a total protein foods, it is made up of adequate proportions of all the amino acids necessary by the human body for standard biological working.

Furthermore, this grain meals is rich in healthier fat, fiber, iron, and calcium but low in calories. Furthermore, it includes trace minerals like manganese and copper that decrease bone decline.

It is equivalent to rice in conditions of size and texture. You can integrate this superfood in a range of sweet and savory recipes. In addition, you can cook and then mix quinoa seeds and use the resultant paste as a thickening agent.

Getting minimal in glycemic index, quinoa is useful for diabetics as well. Plus, individuals who want to just take a gluten-totally free diet regime, also, can choose for quinoa as it does not include gluten.

Sunshine Could Benefit Health and Prolong Life, Study Suggests

Exposing skin to sunlight may help to reduce blood pressure, cut the risk of heart attack and stroke – and even prolong life, a study suggests. (Credit: © Maridav / Fotolia)

Exposing skin to sunlight may help to reduce blood pressure, cut the risk of heart attack and stroke — and even prolong life, a study suggestsResearchers have shown that when our skin is exposed to the sun’s rays, a compound is released in our blood vessels that helps lower blood pressure.

The findings suggest that exposure to sunlight improves health overall, because the benefits of reducing blood pressure far outweigh the risk of developing skin cancer.

The study has been carried out by the University of Edinburgh.

. …  > full story

Nontoxic Solvents Extract Compounds From Plants

Photo of safflower pigment extracts

Drawing From Nature
A natural deep eutectic solvent (left) extracts more pigment from safflowers than ethanol (center) or water (right) does.

Nontoxic Solvents Extract Compounds From Plants

Natural Products: Green solvents made from mixtures of cellular metabolites coax pigments from safflowers.

A new class of cheap, nontoxic solvents made from cellular soups can extract compounds from plants for use in foods, cosmetics, or pharmaceuticals, according to a new study (Anal. Chem. 2013, DOI: 10.1021/ac400432p). The solvents could offer an environmentally friendly way to isolate the plant compounds without the need for toxic organic solvents.

Young Hae Choi, a natural products chemist at Leiden University in the Netherlands, and his coworkers discovered these new solvents while studying metabolites found in cells. The researchers realized that some mixtures of metabolites possessed the characteristics of good solvents, such as having the ability to form hydrogen bonds, no reactivity with water, low vapor pressures, and low melting points.

 

http://cen.acs.org/articles/91/web/2013/06/Nontoxic-Solvents-Extract-Compounds-Plants.html

 

The Alkalizing Benefits of Lemons

Passport to a Healthy Me!

-guest blogger, Jeannette Northern

Lemons again, you say? I can’t help but think about them! There’s a tree just outside my front door that barely wanes from bearing fruit. If memory serves, there’s a mere six-weeks per year when there isn’t a ripe lemon to pick. My father has an older lemon tree that he spends the spring and summer harvesting. His tree reminds me of a cow needing to be milked as its branches hang heavy with bright yellow fruit.

Ever wonder why mother nature would want to offer us such an abundance of lemons?

Dr. Oz says that lemons are a “one ingredient fix” for our good health and skin surface beauty. Lemons help our digestion and cleanse our bodies inside and out. They are anti-bacterial and full of vitamin C. Lemons are even a great exfoliant for the skin. Strangely enough, while lemons are naturally acidic, they actually help to alkalize our bodies and keep our natural…

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