My Autobiography: David Balleza K(C)atague: All you want to Know about Papayas, but were afraid to Ask

Saturday, November 8, 2014

All you want to Know about Papayas, but were afraid to Ask

The other day, while shopping at our local grocery store(Food Maxx) my eyes bulged with excitement when I saw Mexican papayas on sale. The price was 90c per pound about 20c less off the regular price. Normally, I do not buy Mexican papayas, because they are not as sweet as the Papayas grown in Hawaii or in the Philippines. However, because my wife is constipated ( side effects of her PD medicine), any variety of papaya will be good for her BM.
The above incident reminded me of the article I wrote four years ago about the Papaya trees in my garden, that I am reposting today as follows:

I have about six varieties of papaya trees in my garden at Chateau Du Mer in Boac, Marinduque. Of the six varieties, I like the Solo variety imported from Hawaii. The fruits are small but sweet and firm. The other varieties yields bigger fruits but is not as sweet and firm. (see photo above)

Speaking of Papaya Fruits, I am proud to inform readers of this blog, that my doctoral thesis from the University of Illinois, Chicago, USA was on the Papaya Fruit. The title of my thesis was " Chromatographic Analysis of the Volatile Components of the Papaya Fruit". This was published by the Journal of Pharmaceutical Chemistry, Vol 54, No 6, pages 891-894 dated June, 1965. The following is additional information about the Papaya from Wikipedia.

Originally from southern Mexico, particularly Chiapas and Veracruz, Central America and northern South America, the papaya is now cultivated in most tropical countries, such as Brazil, Bangladesh, Pakistan, India, Indonesia, South Africa, Sri Lanka, Vietnam, Philippines and Jamaica. In cultivation, it grows rapidly, fruiting within 3 years. It is, however, highly frost sensitive.

In the 1990s, the papaya ringspot virus threatened to wipe out Hawaii’s papaya industry completely. Two varieties of papaya, SunUp and Rainbow, that had been genetically modified to be resistant to the virus, were introduced into Hawaii.By 2010, 80% of Hawaiian papaya was genetically modified. Today there is still no conventional or organic method of controlling the ringspot virus. In 2004, non-genetically modified and organic papayas throughout Hawaii had experienced hybridization with the genetically modified varieties.

Papaya Fruit
Uses

Papaya can be used as a food, a cooking aid, and in medicine. The stem and bark are also used in rope production.

Gastronomy

The ripe fruit is usually eaten raw, without skin or seeds. The unripe green fruit of papaya can be eaten cooked, usually in curries, salads and stews. It has a relatively high amount of pectin, which can be used to make jellies.

Green papaya is used in Thai and Filipino cuisine, both raw and cooked.

The black seeds are edible and have a sharp, spicy taste. They are sometimes ground up and used as a substitute for black pepper. In some parts of Asia the young leaves of papaya are steamed and eaten like spinach. In parts of the world papaya leaves are made into tea as a preventative for malaria, though there is no real scientific evidence for the effectiveness of this treatment. The following is Papaya, raw Nutritional value per 100 g (3.5 oz)

Energy 163 kJ (39 kcal)
Carbohydrates 9.81 g
Sugars 5.90 g
Dietary fibre 1.8 g
Fat 0.14 g
Protein 0.61 g
Vitamin A equiv. 55 μg (6%)
- beta-carotene 276 μg (3%)
Thiamine (Vit. B1) 0.04 mg (3%)
Riboflavin (Vit. B2) 0.05 mg (3%)
Niacin (Vit. B3) 0.338 mg (2%)
Vitamin B6 0.1 mg (8%)
Vitamin C 61.8 mg (103%)
Calcium 24 mg (2%)
Iron 0.10 mg (1%)
Magnesium 10 mg (3%)
Phosphorus 5 mg (1%)
Potassium 257 mg (5%)
Sodium 3 mg (0%)
Percentages are relative to US recommendations for adults.

Cooking

Green papaya fruit and the tree's latex are both rich in an enzyme called papain, a protease which is useful in tenderizing meat and other proteins. Its ability to break down tough meat fibers was used for thousands of years by indigenous Americans. It is included as a component in powdered meat tenderizers.

Medicine

Papaya is marketed in tablet form to remedy digestive problems.

Papain is also applied topically (in countries where it grows) for the treatment of cuts, rashes, stings and burns. Papain ointment is commonly made from fermented papaya flesh, and is applied as a gel-like paste. Harrison Ford was treated for a ruptured disc incurred during filming of Indiana Jones and the Temple of Doom by papain injections.

Women in India, Bangladesh, Pakistan, Sri Lanka, and other countries have long used green papaya as a folk remedy for contraception and abortion. Enslaved women in the West Indies were noted for consuming papaya to prevent pregnancies and thus preventing their children from being born into slavery.[citation needed] Medical research in animals has confirmed the contraceptive and abortifacient capability of papaya, and also found that papaya seeds have contraceptive effects in adult male langur monkeys, possibly in adult male humans as well.[11] Unripe papaya is especially effective in large amounts or high doses. Ripe papaya is not teratogenic and will not cause miscarriage in small amounts. Phytochemicals in papaya may suppress the effects of progesterone.

Papaya is frequently used as a hair conditioner, but should be used in small amounts. Papaya releases a latex fluid when not quite ripe, which can cause irritation and provoke allergic reaction in some people. The papaya fruit, seeds, latex, and leaves also contains carpaine, an anthelmintic alkaloid (a drug that removes parasitic worms from the body), which can be dangerous in high doses.

It is speculated that unripe papayas may cause miscarriage due to latex content that may cause uterine contractions which may lead to a miscarriage. Papaya seed extracts in large doses have a contraceptive effect on rats and monkeys, but in small doses have no effect on the unborn animals.

Excessive consumption of papaya can cause carotenemia, the yellowing of soles and palms, which is otherwise harmless. However, a very large dose would need to be consumed; papaya contains about 6% of the level of beta carotene found in carrots (the most common cause of carotenemia) per 100g.

Here's a short video of commercial papaya farming from Australia

Medicinal potential

* The juice has an antiproliferative effect on in vitro liver cancer cells, probably due to its component of lycopene or immune system stimulation.[16]

* Papaya seed could be used as an antibacterial agent for Escherichia coli, Staphylococcus aureus or Salmonella typhi, although further research is needed before advocating large-scale therapy.

* Papaya seed extract may be nephroprotective (protect the kidneys) in toxicity-induced kidney failure.

For a change of mood, here's how to make green papaya salad the Thai Way!(different from the Philippine acharra)

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Highlights of My Professional Career

In my more than 40 years of professional career, I have experienced both working rank and file, as well as supervising the work of subordinates. I have worked in four private firms and the Federal Government, the Food and Drug Administration (FDA), where I retired. I enjoyed the challenges and difficulties of both types of job situations. This is the highlights of my work experience story.

My first job after completing my doctorate degree was a Chemist for Chemagro Corporation in Kansas City, Missouri. It was a subsidiary of Bayer Corporation, a German conglomerate. I worked for the analytical chemistry department comprised of about fifty people; half that number was either chemists or biologists. My specific task was to develop analytical methods for the detection of pesticide residues in plant and animal tissues. I worked on my own, similar to six other bench chemists, and we all reported to the same supervisor.

The firm sponsored my visa conversion from a student to a permanent resident, and I was able to legally work and reside in the United States with my family. The company generously took care of its employees. At the end of each successful year, everyone received a 13th month salary bonus. The employees and their families celebrated wonderful annual Christmas parties in a downtown Kansas City hotel, with dancing and free drinks for the whole night.

Inasmuch as I enjoyed and loved working for Chemagro for five years, I found a new job which offered a substantially higher pay. Due to my exemplary work performance, my supervisor preferred and lobbied for me to stay with the company. I had to turn him down because they could not match the package presented by my new employer. It was also a chance for me and my family to move and live in the US west coast, where the mild winter climate is bearable compared to the Midwest.

My next job was at the agricultural research division of Shell Development Company in Modesto, California. I was a Research Chemist, and again I worked individually, same as five other chemists who all reported to a supervisor. My specific duty was similar to my previous job. I worked for them for five years, until the company decided to get out of the pesticide business. They closed their research facility affecting the jobs of more than 200 employees.

My third industrial job was with the agricultural research division of Stauffer chemical company, located in Richmond, California. I was a Senior Research Chemist doing the same project as my two previous jobs. I worked for twelve continuous years for the company, with outstanding annual job performance. I became a Principal Research Chemist, the highest attainable non-supervisory position.

One day in 1986, my supervisor informed me that my job had been eliminated, and I had one day to vacate the facility. It was the most dreadful lay off experience in my life. I felt anger, sadness and humiliation to be dismissed from work with one day notice, after all the years of hard work invested for the company. This was an unforgettable incident and was the gloomiest point in my professional career.
The company terminated sixty research employees, who were upset of the bad news.

One of the chemists was distressed and expressed his outrageous anger by threatening the company and its workers. He told his supervisor of his intention to bomb and burn down the laboratory. He was immediately escorted by the security staff out of the building and into his car. He was informed to leave behind his personal belongings; they will be mailed to his residence. He was warned never to show up again near the company premises or risk getting arrested.

My supervisor was kind and allowed me to take my time to pack up my belongings. It took me two days to clear up my workplace, after toiling for a long period in the same jobsite. We were provided clerical help and office space, in preparation to look for another job, such as updating our resumes, and using the computer and copy machine. We were given six weeks of separation pay plus benefits.

Fortunately, with the help of a friend who is a Church parishioner, I found another job thirty days after leaving Stauffer chemical company. He hired me as a senior research chemist and as a group leader with two technicians to supervise. It was in the same field as my expertise in my previous three jobs spanning the last twenty one years. My new employer was Chevron Chemical Company, and which was located in the same area as my former employer.

This job gave me the introduction and basic knowledge of managing the work of subordinates. I worked for Chevron Company for four and a half years. The company decided to consolidate their research facilities in Texas, and lay off all its research employees. This time I had enough distress and agony from working, and eventually getting laid off from several private companies. To avoid going through any more miserable layoffs, I made a vow that I would never again work for a private company.

In my work experiences, there were noticeable and unavoidable jobsite occurrences. One can never miss the office romantic relationships between co-workers, both illicit and permitted. Though it was frowned upon, there was a boss and staff relationship, which was used as a ploy to get ahead in the company. Some relationships had chemistry, no pun intended, but some never worked out. Oftentimes, there was a sense of distrust among bench chemists for some workers who unjustly obtained preferred work assignments.

Some employees resorted to bribing superiors to get special privileges, such as being able to attend choice conferences and meetings in exciting venues or locations. Likewise, politics was always present at the worksites. It was during an era when various forms of harassment, equal opportunity and discrimination laws were not yet enforced in the workplace. Occasionally, an unexpected chemical explosion happens in a laboratory setting, where luckily no one got seriously hurt.

In the three private companies I worked for, I was able to publish scientific journals for some of the research studies and analytical methods which I developed for the respective companies of Chemagro, Shell Development and Stauffer.

After deciding and making a vow to avoid working in the private sector, I made my new goal which was either to work for the state of California, or the Federal government in Washington, D.C. Four months after I lost my job in Chevron, I was lucky and joyful to be hired by the Food and Drug Administration as a review chemist in the fall of 1990.

In 1994 I was promoted as an Expert Research Chemist with a GS-14 rating. My expertise was on Anti-malarial and Anti-parasitic drug products. In 1997, I was again deservingly promoted to Chemistry team leader, supervising the work of six Chemistry reviewers including five with doctorate degrees.

As team leader, I was responsible for prioritizing, assigning, and assuring the technical accuracy of all chemistry, manufacturing and control issues for all new drug applications submitted to the Division of Anti-Infective Drug Products, Center of New Drugs.

It was part of my responsibility to give advice, instruct and promote high morale and teamwork in my group. My work in the FDA is confidential, until the drug patent on the products I worked on has expired. There are manufacturing supplements that I have approved that are now open for the public in the Internet.

In 1998, I won the Equal Employment Opportunity (EEO) Award. The citation reads, “For outstanding accomplishments in fostering the objectives of the EEO Program by hiring minorities and encouraging their professional growth while providing excellent leadership.” I have received numerous certificates of appreciation, awards in leadership and communications, commendation for teamwork and excellence in the accomplishment of the FDA mission. I have also received several letters of appreciation from private industry for my review work.

There are many good things working as rank and file while enjoying doing one’s job individually. It is a humbling, satisfying and productive experience, if one can work in harmony with one’s immediate supervisor. Working individually develops one’s skills in goal setting and scheduling. But in general, the financial rewards are less than a person who has supervisory responsibilities.

Managing the work of others has its challenges. Moreover, it develops one’s skill in handling and developing people, and the compensation rewards and benefits are better. Due to additional duties, responsibilities and leadership, supervisory work can be more stressful than working as a subordinate. However, supervisory jobs give one more personal growth and satisfaction, based on my personal experience. My work in FDA as a team leader managing the work of six scientists had been the happiest and rewarding work experience in my career in Chemistry. You might also like:

Saturday, November 8, 2014

All you want to Know about Papayas, but were afraid to Ask

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