All about fruitarianism with a long-term fruitarian, Lena

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  • Huge Papaya

    I found a very big papaya in a local growers store, around 13 inches long. And it was good too.

  • Complex Fruitarian Salad with Spices and Herbs

    Fruitarian Salad - a somewhat complex non-sweet fruit salad recipe, with my usual spices and herbs, and with some additional ingredients this time like chives, oregano, sage, thyme, marjoram, basil, rosemary, etc. - raw vegan, for Winter and cold - a 30-minute improvised video:

    Hope you liked some of my ideas and got your own!

  • Matt - jAe Costly

    Matt - jAe Costly

    This is an interview with Matt - we talked after this interview online live, see the video below (~ 2.5 hours). Matt kindly agreed to answer my questions when I invited him after watching this video (Dear Vegans, Plants DO Feel Pain BUT...) on his channel: 

    I Introduction
    1. Please, introduce yourself.

    Greetings! My name is Matthew. On the internet, I go by either jAe Costly or jack's Afer effort. 

    2. How would you describe this stage of your life?

    Veganism. 

    3. Tell us something about your background.

    I grew up in the United States. I have been vegan for over a year. I used to work at a Zoo but I have been studying science education for the past few years. 

  • 8K Walk / Run - Easing into the Morning Running

    After a too short night sleep :)

  • 8K Run + Unusual Vegan Fruitarian Salads

  • 18K Walk-Run to Newport Beach, Huntington Beach Restaurant, Berries for Lunch

  • 10K Walk / Run + Jump + Exercise - You Need Only Shoes

    Two-hour exercise outside on Saturday in SoCal (California).

  • Is High Fruit Raw Vegan Diet the Key to Vitality and Health?

    I was asked this question by a very nice person. The first version of the question was (with a few additional details):

    ...do you think high fruit raw vegan diet is optimal for health?...I honestly sense i am not going the right way, as I am not "glowing" on this lifestyle. Would love your perspective.

    The final version of the question was:

    ...is this diet key to vitality and health, aside of course relationships, state of mind and etc.

    In this semi-spontaneous response I did not touch on a few important aspects of the issue because the subject was a bit too broad and complex to give an comprehensive and definitive short answer. I also did not know almost anything about this person experience with this diet. The video is ~ 30 minutes long:

  • 10K Walk / Run - Nature, Teens, Grand Battement, Vlogging, Personal Marketing, Lake

    Another walk and run along a destructed river and by a lake in Southern California: walking, jumping, running, accelerating, elements of ballet training, stretching, grand battement ([batmɑ̃], a movement in which both legs are kept straight and one leg is kicked outward from the body and in again). A few thoughts on freedom of mind, personal marketing on youtube, critique on building communities of loyal followers as a marketing strategy, "begging" for money and attention, cost of making videos.

  • Lucky Sun Hours

    Unexpectedly, the Sun went out, and I was happy all the way to the pool, in it, and back.

    7K Walking (total), 1.5K swimming.

    This is me, Lena, in the bright Californian sunlight after a swim.

Albert Einstein

If people are good only because they fear punishment, then we are a sorry lot indeed. 

Protein Structure, Cooked and Denatured Proteins

Proteins are chains of amino acids. The sequence of amino acids in a chain is known as the primary structure of a protein. The chains fold up to form complex three dimensional shapes. The chains can fold on themselves locally (secondary structure) and wrap around themselves to form a specific three dimensional shape (tertiary structure).

The secondary / tertiary structure of a folded protein is directly related to its function. For example, enzymes are proteins that catalyze reactions. They have binding sites that interact with other molecules. These binding sites are created through the folding of the amino acid chains that gives rise to the three dimensional shape of the enzyme.

Denatured Protein

Denaturation of proteins involves the disruption and possible destruction of both the secondary and tertiary structures. Since denaturation reactions are not strong enough to break the peptide bonds, the primary structure (sequence of amino acids) remains the same after a denaturation process. Denaturation disrupts the normal sheets in a protein and uncoils it into a random shape.

Denaturation occurs because the bonding interactions responsible for the secondary structure (hydrogen bonds to amides) and tertiary structure are disrupted. In tertiary structure there are four types of bonding interactions between "side chains" including: hydrogen bonding, salt bridges, disulfide bonds, and non-polar hydrophobic interactions. which may be disrupted. 

Proteins can be denatured through exposure to heat or chemicals. Denatured proteins lose their three dimensional structure and thus their function. 

Digestion of Proteins and Cooking

Protein digestion begins in the stomach, where the acidic environment favors protein denaturation. Denatured proteins are more accessible as substrates for proteolysis than are native proteins. The primary proteolytic enzyme of the stomach is pepsin, a nonspecific protease that is maximally active at pH 2. Thus, pepsin can be active in the highly acidic environment of the stomach, even though other proteins undergo denaturation there.

Heat disrupts hydrogen bonds and non-polar hydrophobic interactions. This occurs because heat increases the kinetic energy and causes the molecules to vibrate so rapidly and violently that the bonds are disrupted

Foods are cooked to denature the proteins to make it easier for enzymes to digest them. Cooking food denatures some of the proteins in it and makes digestion more efficient. Heating to denature proteins in bacteria and thus destroy the bacteria.

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