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Efficacy of Rosella Flower (Hibiscus sabdariffa L)

Tea is the result of processing the shoots (young leaves) of the tea plant (Camellia sinensis) which is used as a beverage ingredient. Gradually roselle tea began to be popular with the public. It’s not impossible if one day rosella tea can shift the prestige of ordinary tea, considering that rosella is easy to develop and can grow not only in cold areas.

Tea from rosella flowers also has more or less the same properties as tea that we usually consume, even the content of vitamin C as the antioxidants are greater than regular tea and rosella flower tea contains omega 3. Examples of rosella flowers are presented below.

The various ingredients contained in the rosella plant make it popular as a traditional medicinal plant. Vitamin content in rosella flowers quite complete, namely vitamins A, C, D, B1, and B2. in fact, its vitamin C content (ascorbic acid) is known to be 3 times more than black grapes, 9 times than orange citrus, 10 times that of star fruit, and 2.5 times that of guava. Vitamin C is an important antioxidant. The sour taste in rosella flowers is a combination of various types of acids such as ascorbic acid, citric acid, and glycolic acid. Also active ingredients contained in rosella are peptin, anthocyanins, and beneficial flavonoids prevent cancer, control blood pressure, blood circulation, etc. The fiber content is quite high which plays a role in launched the disposal system and lowered cholesterol levels as well beneficial for the body. In general, the chemical composition of rosella petals can be seen in Table 1.

Table 1. Chemical composition of rosella petals.
Per 100 gr of material

(2) http://warnet.tblog.com/post/1970105842

Based on the chemical composition contained, it can be described some of the benefits of rosella flowers, including the following :

  1. As an Anti-Oxidant
    High levels of anti-oxidants in rosella calyx can inhibit it free radicals. There are many chronic diseases that are commonly found today caused by excessive exposure to free radicals. Including damage kidney, diabetes, mellitus, coronary heart disease, to cancer. Plus, radical Free radicals can
    also cause premature aging.
  2. Anti-Cancer
    In the presence of anti-oxidants, free radical cells that damage the cell nucleus can be removed. That’s why rosella has an anti-cancer effect.
  3. Anti-Hypertension
    The diastolic blood pressure was reduced up to ten figures for 79% of people consuming rosella and for people taking antihypertensive drugs
  4. Guardian of The Hearts
    The extract rosella can protect rat liver. After being given 1-5% rosella for 9 weeks, liver damage such as steasis and fibrosis down.
  5. Prevent osteoporosis
    The most important substance in rosella that plays a role in preventing osteoporosis is calcium. The calcium content in rosella is quite high, namely 486 mg/100 gr. The main function of calcium is to fill the density (density) of bones.
  6. Other benefits of rosella flowers
    Develop rosella cultivation and rosella processing into a variety of products. Rosella cultivation has good prospects promising and can be used as economic added value for society.

Anonymous. (2010). Nutritional Content of Rosella Tea. http://warnet.tblog.com/post/1970105842
Rienkarianty. (2008). Rosella, Fragrant Flowers Rich in Benefits.
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Writed by Novi Indah Permata Sari, ST.,M.Sc

Whitish Bamboo Forest, Surabaya (Hutan Bambu Keputih, Surabaya)

There are many historical relics in the city of Surabaya which is now popular as a historical and cultural tourist destination. However, it turns out that there is also land containing fertile and beautiful bamboo forests. The bamboo forest is called the Whitish Bamboo Forest.

For information, bamboo has an important economic value in Indonesia. Some examples of the use of bamboo can be found in building materials, as a food source, and as a versatile raw product. Bamboo is a non-timber forest product plant (HHBK) with the highest number based on data from the Central Statistics Agency (BPS) in 2019.

The Origin of the Whitish Bamboo Forest
Whitish Bamboo is located on Jalan Raya Marina Asri, Keputih, Sukolilo District, Surabaya City. Launching from the Surabaya City Government (Pemkot) website, this forest was once a landfill. However, the Surabaya city government moved the landfill to the Benowo area in 2000. The vacant land was converted into a green open space as well as a tourist destination. Now, the Whitish Bamboo Forest is crowded with tourists. To preserve the bamboo forest, the Surabaya City Government formed a Task Force (Satgas) which aims to maintain and preserve the Whitish Bamboo Forest. The task force consists of 15 people.

Whitish Bamboo Forest Atmosphere
According to the Ministry of Environment and Forestry, there are 125 types of bamboo in Indonesia and 39 types of them have been identified. Of these, there are 11 types that are classified as commercial types. However, until now there is no official source that identifies the types of bamboo plants in the Whitish Bamboo Forest. Some bamboo groups that are often developed in Indonesia are the
Bambusa, Dendrocalamus and Gigantochloa species. The atmosphere of the Whitish Bamboo Forest presents a beautiful and green beauty. With tall bamboo sticks looming, visitors can feel the shady atmosphere along the way. When there is sunlight infiltrating between the gaps in the bamboo
trees, a mystical nuance appears as if it was carried away to another world. Access roads in the Whitish Bamboo Forest feel more natural because the road is still natural, not using asphalt or paving blocks.

Benefits of Whitish Bamboo Forest
Whitish Bamboo Forest located close to downtown Surabaya can provide many benefits such as:

  1. Maintain a healthy body in
    A study conducted by Sichuan Agricultural University’s College of Landscape Architecture, viewing and walking activities in a bamboo forest environment are beneficial in terms of effectively lowering blood pressure, slowing heart rate, and maintaining oxygen saturation. Visiting bamboo forests can also relieve physical stress and stabilize emotions so that they can maintain a healthy body
  2. Increasing the volume of water underground
    Based on research by I. Made Budiasa, I. G. N. Alit Wiswasta, and I. Dewa Nyoman Raka from Mahasaraswati University Denpasar, bamboo plants have very strong rhizome roots. This root structure allows bamboo to bind soil and water well. Compared to trees that only absorb 35-40% rainwater, bamboo can absorb rainwater up to 90% thereby significantly increasing the volume of water underground.
  3. Conserving water resources
    Bamboo can absorb rainwater up to 90% so that it can help in the preservation of water resources. Not only that, in a day, bamboo can increase in length by 30-90 cm and reach adulthood at the age of 3-6 years. Bamboo planting does not require large costs because bamboo plants are folk plants that are easy and cheap to get.
  4. Absorbing carbon dioxide
    Bamboo absorbs more carbon dioxide than woody plants or fruits. Studies show that one hectare of bamboo plants can absorb more than 12 tons of carbon dioxide in the air. By conserving bamboo forests, carbon dioxide is also absorbed more so that carbon emissions can be reduced and global
    warming can be prevented. Therefore, the Whitish Bamboo Forest is not only beautiful to enjoy but has an important role for the environment and health. It is located not far from the city center so it is easily accessible from anywhere.

Writed by Novi Indah Permata Sari, ST.,M.Sc

Why Culinary Arts?

Attending a culinary arts program will allow you to learn the skills and knowledge that are required of a chef in the kitchen, which includes not only knowing how to cook but also how to create new dishes, how to keep the kitchen safe, how to run the kitchen efficiently and more.

Studying the culinary arts can help improve your life in many ways, including allowing you to improve the lives of the people you cook for as well. The following are just a few of the reasons why you should study the culinary arts:

1. A variety of career opportunities

There are a broad range of opportunities within the culinary arts fields. Career paths range from members of the preparation staff to head chef. Culinary arts training can provide the skills you need to safely prepare food and present it promptly in a visually pleasing way. With further education, you can even specialize in a specific area of the culinary arts, such as pastries. To become a chef, you could work your way up as you gain more experience. With a culinary arts education, you have the ability to start in professional environments and advance your career further.

2. Hands-on training

A culinary arts program will help prepare you for food safety, professionalism, entrepreneurship, and ethical practices. At OTTIMMO International, you will also get knowledge about food sanitation, cost control, entrepreneurship, wine, coffee, and many others along with learning how to cook in a variety of distinct and creative ways.

3. Try new flavors

An education in culinary school can give you the opportunity to try new flavors and experiment with the creation of dishes. You will be educated in flavor pairings and profiles that will give you the foundation and the potential needed to create culinary masterpieces.

4. Healthy lifestyle

Good culinary arts programs will teach you about nutrition. Many chefs these days have emphasized the importance of creating delicious dishes that are actually healthy in order to promote nutrition to their customers. This is the reason why the restaurants that offer vegan or plant based menus are getting popular.

5. Have the chance to travel the world

One of the advantages of going to a good culinary arts school is the opportunity to travel the world. Traveling the world will provide some enlightening experiences that will help to shape your view of life as well as your thoughts about food. OTTIMMO International will give you a chance to do an internship abroad, like to Europe, Asia, USA and Australia.*