About Chemistry, Environment, Waste Management and Green Life Inspirations

01 December 2009

The Ginza Honeybee Project -- Urban Development Inspired by Beekeeping

JFS Newsletter No.86 (October 2009)

JFS/Honeybee_Project01
Copyright Ginza Bee Project


Ranked with the Fifth Avenue shopping district in New York City, Japan's Ginza district in Tokyo is one of the world's leading downtown districts, complete with high-class department stores and designer shops. Today, bee honey collected from hives there is starting to attract people's attention. Ginza honeybees are nicknamed "Ginpachi" (short for "Ginza bees" in Japanese), and recently they have become somewhat of a new mascot for the district.

A five-minute walk from the intersection of Ginza 4-chome will take you to a building where, on the rooftop 45 meters above, you'll find some honeybee hives. The beekeepers are using the honey to make Ginza-based products using local skills. For example, delicious sweets and confectionaries are whipped up by local pastry chefs using the honey collected, and then put on display for sale in the showcases of local shops. Some of the beeswax is also made into candles for use at the Ginza Church's Christmas Mass.


Birth of the Ginza Bee Project

This outstanding project is administrated by a non-profit organization called the Ginza Bee Project, which is run by volunteers of Ginza Shokugakujuku, a group that regularly holds seminars on food sources and diet, and those of the Ginza Town Study Group, a group focused on studying the history and culture of the area.

The aim of the project is to interact with the local environment and ecosystems in Ginza through beekeeping. Although Ginza, which is located in the middle of Tokyo, has some small green areas, these groups are trying to learn more about how a sustainable society and the local environment operates by working with honeybees and using the honey they produce.

At the beginning of the project, in late 2005, some people had concerns that it might be dangerous to keep honeybees in the densely populated urban district, because they thought the bees might attack people, but honeybees are generally gentle creatures, and they never attack unless suddenly surprised. After thoroughly explaining the nature of honeybees to the tenants of the building where the hives were to be installed, in March 2006, the project members placed three hives on the building's rooftop, and the bees began flying into the sky above Ginza.

Is it really possible to keep honeybees and collect honey in an urban area such as Ginza? Many were suspicious. Honeybees are said to fly within a three- to four-kilometer radius from their hives to collect nectar. Fortunately, parks rich in green space are located within two kilometers, such as the Imperial Palace, Hibiya Park, and Hama-rikyu Gardens. Furthermore, many roadside trees are also good sources of nectar. The amount of honey collected has been increasing steadily, growing from 160 kilograms (kg) in 2006, to 290 kg in 2007, 440 kg in 2008, and over 700 kg in 2009.

The honeybee is said to be an environmental indicator species because it is extremely susceptible to pesticides, which are used on vast areas of farmland in Japan, and are causing the survival rate of bees to drop. Meanwhile, in Ginza, which is in the central part of metropolitan Tokyo, the use of pesticides is avoided because of the growing number of people with allergies. So Ginza has ended up being a bee-friendly environment, and the high-quality honey-producing Ginza bees have made people aware that the district has a rich natural environment.

Since the bees were brought to Ginza, cherry blossoms that had previously not been pollinated began to produce cherries. People began to see birds eating the cherries, and small insects began rejuvenating the environment around the area.

JFS/Honeybee Project03
Collecting Honey
Copyright Ginza Bee Project

The extraordinary combination of Ginza and honeybees has attracted attention from the public and media since the start of the project, and more and more people are enjoying Ginza honey. People began thinking of not only the bees and the honey they produce in Ginza but also the natural environment around the whole region.


Ginza Green Project Focused on Growing Local, Eating Local

The existence of bees in Ginza has gradually become known by most people in the area, and some who were only interested in honey before began to take notice of their local environment. In order to provide a more comfortable environment for the bees, the Ginza Green Project was launched in 2007, with the aim of creating flower and vegetable gardens on building rooftops to increase the amount of green space sources of nectar for them. This project was actually started on the roof of Matsuya Co., a department store in Ginza, with the cooperation of Masaki ENVEC Co., a rooftop-gardening company.

The project's objectives are not only to produce honey but also to reduce the negative impacts of the urban heat-island effect, by which concrete and roads retain heat from the sun and increase local temperatures. The aim is also to realize a "grow local, eat local" ethic in the true sense by collecting the honey that Ginza bees produce from local nectar sources, and making food and sweets using the honey harvested from the rooftop plot. It also aims to encourage person-to-person relationships among people who many have otherwise been complete strangers.

JFS/Honeybee Project04
Rooftop garden of Matsuya
Copyright Ginza Bee Project

Today, 30 employees from Matsuya and its partner companies are helping with the rooftop garden as after-work volunteers. According to spokesman Yukio Oki, employees other than members are also starting to care about how the vegetables are growing, which proves the company's success in raising environmental awareness. Matsuya often gets words of encouragement from its customers about its activities on the rooftop, which is open to the public. The company plans to sell sweets and bread using the herbs grown on its rooftop to achieve the goal of growing locally and eating locally.

With interest growing in the Ginza Green Project, various people -- including students and people from the Ministry of Agriculture, Forestry and Fisheries -- are frequently visiting the project sites. Besides the Matsuya department store, Ginza Blossom (a wedding hall), an art gallery, and some commercial establishments are now participating. They grow a variety of things on their rooftops, like herbs for cooking, rice for brewing sake, fruit for sweets, and green soybeans to be served as snacks at high-class bars, so the Ginza Green Project is expanding further while involving a growing number of neighbors.

JFS/Honeybee Project05
Copyright Ginza Bee Project


Japanese Honeybees

Three of the beehives brought to Ginza in March 2006 were populated by European honeybees, first introduced to Japan in the Meiji period (1868-1912). Because the European honeybees are better at producing honey, they have been playing a central role in beekeeping in Japan, and many Japanese beekeepers raise them.

Indigenous Japanese honeybees, in contrast, produce less honey and are more difficult to raise, so they are considered inferior to European honeybees from an apicultural point of view. Recently, however, it has become better understood that Japanese honeybees are skilled at fighting hornets, a natural enemy of European honeybees. Furthermore, Japanese honeybees are more disease-resistant and tolerant to extremes of heat and cold, which are attributes better suited to Japan's natural environment.

Japanese honeybees have generally been considered to be pests, and are often exterminated when they build beehives in street-side trees or in residential areas, but in 2007 the Ginza Bee Project started an initiative to conserve Japanese honeybees by rescuing them from extermination and raising them in Ginza.


Creating a Ginza "Satoyama"

Ginza was one of the first districts in Japan to introduce Western technology such as brick construction and street gaslights. Since the time when Edo, Japan's former capital, was renamed Tokyo, Ginza has always been ahead of the times, while still preserving Japanese history and culture. When a number of high-rise buildings were constructed under redevelopment projects in various parts of Tokyo, Ginza held extensive talks with Chuo Ward, which has local jurisdiction, before the ward finally established an ordinance in 2006 to set the maximum height of buildings at 56 meters in the Ginza district.

"Our future vision for Ginza is not a place where buildings compete for height, but where people and even small insects can coexist in harmony with nature," said Atsuo Tanaka, co-founder of the Ginza Bee Project. "We believe that honeybees and people's appreciation for them will help to create an urban district full of greenery, just like the "satoyama" of old (traditional nature-rich rural landscapes near villages). We would be happy if our project could be of some help for future urban planning in Japan," he said.

Many people are really looking forward to seeing how the Ginza Bee Project continues to evolve in Ginza's urban "satoyama," and also to seeing lots of honeybees flying around.

JFS/Honeybee_Project02
Copyright Ginza Bee Project

Written by Yuriko Yoneda

A SEED JAPAN's Zero-Waste Approach a Big Success at Outdoor Concerts

JFS/gomi zero navi
Copyright international environmental NGO "A SEED JAPAN"


The "Zero-Waste Navigation," program conducted by international environmental NGO "A SEED JAPAN," has long been active at concerts and other outdoor events held in Japan. The NGO was founded in 1991 mainly by Japanese people in their twenties who felt responsible for the well-being of future generations of Japanese. The program is a participatory-style of environmental activity at outdoor events, getting people to pick up trash and garbage in order to reduce the amount thrown away. The key idea is not to bring in volunteers to do the work, but to get the actual participants at the events involved in cleaning up.

Triggered by the sight of enormous quantities of rubbish left behind at events, this approach was started in 1994, dealing with separating trash, distributing trash bags, recovery and recycling of resources, and a system to reuse dishes. As 70 percent of rubbish at these events is disposable dishes, the organizers of the program decided to lend out reusable dishes.

In 2008, all of the efforts helped to reduce 5 tons trash, but thousands of reusable dishes went missing, which was seen as a big problem. Organizers are therefore encouraging people to bring own cups and plates from now on.

Since music festivals and other outdoor events are very popular during the summer in Japan, the group has high expectations for the Zero-Waste Navigation approach. It was used at six events during the summer of 2009, and will be continued this autumn and later.

[Youth Action] A SEED JAPAN
http://www.japanfs.org/en/pages/029220.html
Statement Adopted at World Youth Forum Toward Toyako Summit (Related JFS article)
http://www.japanfs.org/en/pages/027148.html
[Newsletter] Universities and Students Tackling Environmental Issues No.18 (February 2004)
http://www.japanfs.org/en/mailmagazine/newsletter/pages/
027776.html

New Model Estimates Nitrogen Outflow and Water Pollution from Food Production and Consumption

JFS/Model of Nitrogen Outflow and Water Pollution
Nitrogen Concentration of River Water
Copyright The National Institute for Agro-Environmental Sciences


The National Institute for Agro-Environmental Sciences (NIAES) of Japan announced on August 18, 2009, that it had developed a broad-based model to extensively estimate changes in nitrogen circulation due to the production, trading and consumption of food, and the influence on water quality. Nitrogen flows into national land area externally from use of fertilizer, food trading and seafood capture, etc. After circulating from crops to farm animals and humans, nitrogen flows out into groundwater and rivers.

According to the model, due to increases in population and per capita food demand in Japan, nitrogen inflow increased until the late 1980s. Since the 1990s, a decrease in use of nitrogen fertilizers has suppressed the nitrogen outflow. Estimation of nitrogen in groundwater and rivers by region indicated high levels of nitrogen near big cities and in areas with abundant livestock farming.

On the other hand, the model also showed that most nitrogen inflow into national land area comes from fertilizers, and is still on the increase in China and Southeast Asian countries such as Thailand and Vietnam. Nitrogen concentrations in China are extremely high in the downstream areas of the Yellow River and the Yangzi River where intensive agriculture is conducted.

This estimating model has made it possible to find out what elements, related to production and consumption of food, cause water contamination in individual regions. It can also predict impacts on the environment due to changes in food demand in response to future demographic trends and the cultivation of feed and energy crops.

National Institute for Agro-Environmental Sciences official website
http://www.niaes.affrc.go.jp/index_e.html

16 November 2009

BIOETANOL DARI KELAPA

Anak SMA Temukan Kelapa Hasilkan Bioetanol dan Biogas

Era Baru News Jumat, 30 Oktober 2009

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Jakarta - Ternyata kelapa tidak hanya bisa menghasilkan biosolar, namun bioetanol pun bisa dihasilkan dari ampas dan air kelapa, bahkan limbah dari bioetanol kelapa ini masih bisa dimanfaatkan sebagai campuran biogas.

Hal itu merupakan hasil penelitian dari tiga anak SMA Negeri 2 Pare, Kediri, Jawa Timur, yakni Muh. Wildan Yahya, Ardhy Purwo, dan Diana Sekar Sari yang memenangkan Lomba Karya Ilmiah Remaja (LKIR) ke-41 bidang Ilmu Pengetahuan Teknik yang diselenggarakan LIPI.

Menurut Wildan yang dihubungi dari Jakarta, Kamis (29/10), biofuel ada tiga macam yakni biosolar yang merupakan campuran antara solar dengan minyak nabati yang telah dimetilasi, bioetanol yang merupakan alkohol yang dihasilkan dari fermentasi, sedangkan biogas dihasilkan dari penguraian biomassa secara anaerob oleh bakteri methanogenesis.

Saat ini, ujarnya, pembuatan biosolar, bioetanol dan biogas dilakukan secara terpisah, di mana biosolar dari minyak perasan kelapa sawit, bioetanol dari tebu atau singkong yang difermentasi dan biogas dari kotoran ternak.

"Padahal ketiganya bisa dihasilkan dari buah kelapa (Cocos Nucifera) yang diolah secara bertingkat," ujar juara I LKIR dari karya berjudul: "Optimalisasi Produksi Biofuel dari Kelapa dengan Pengolahan Bertingkat" itu.

Menurut Wildan, kelapa yang melimpah di Indonesia bisa diperas dan menghasilkan minyak nabati berupa biosolar di mana untuk satu liter biosolar membutuhkan 0,48 kg buah kelapa.

Ampasnya, lanjut dia, jangan dibuang, karena masih memiliki selulosa dalam jumlah besar dan tinggal dilakukan hidrolisis dengan larutan asam dan difermentasi dengan Saccharomyces cerevisiae.

Demikian pula air kelapa, bisa ditambah sedikit urea sebelum fermentasi, dan jika kadar gula tak sampai 17 persen, maka bisa ditambah glukosa atau sukrosa.

Dengan ampas kelapa 6,56 kg bisa menghasilkan seliter bioetanol berkadar 95 persen, sedangkan bagi seliter air kelapa, sebanyak 11,4 persennya bisa menjadi bioetanol, ujarnya.

Limbah bioetanol ini, lanjut Wildan, jika dicampur kotoran sapi bisa menjadi biogas dengan lebih dulu dilakukan penetralan pH.

"Dari 100 liter limbah bioetanol menghasilkan 2,5 m3 biogas. Limbah biogas juga bisa dijadikan pupuk," tambahnya.(ant/waa)

13 November 2009

Pesticides Cencor From Paper

Keywords: paper, pesticide, sensors

new-face-005

Some researchers have developed a paper-based sensor that automatically changes color to detect pesticide-pesticide organofosfat and acetylcholinesterase inhibitors (Ache) others in the food and beverage samples. John Brennan and his colleagues at McMaster University Canada has made a reagent-free devices that detect simple pesticides nanomolar amounts within five minutes on the samples such as milk and lettuce.

Paper is a very interesting material for analytical devices because of relatively cheap, abundant, and can move the working fluid by capillary without external power. Recent focus on diagnostic platforms based on changes in color and paper-based has arisen because of such platforms can be used in locations where there are limited resources.

Tim Brennan uses Ache as a reporter because it is inhibited by pesticides such as organofosfat and karbamat. "Organofosfat still used in developing countries for the spraying of agricultural crops," said Brennan. "Ache-based sensors have the potential for rapid inspection organofosfat in the field."

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Change colors obtained using paper-based sensors is clearly a proof of concept studies above, and occurs in seconds.

Piezoelectric inkjet print used for mendeposisikan reagents on paper-based foundation for the preparation of the use, so that additional reagents are not required at the time of analysis. Ache and a substrate that changes color, indofenil acetate (IPA), was framed in two separate zones on the piece of paper 1 x 10 cm by using the links from the silica sol-gel biokompatibel, the enzyme is trapped in a zone of sensors and science stored in the substrate zone.

To test a sample, the end of the paper sensor is placed in the sample solution, which flows through the capillaries into the work-sensing zone where he left berikunbasi. Furthermore, the other end of the sensor immersed into distilled water so that the flow in the opposite direction of pressing science into the substrate zone-sensing area. There, Ache hydrolyze IPA, to form the color change from yellow to blue. The intensity of blue color was observed (either with the naked eye or with a digital camera) is inversely proportional to the amount of pesticides found in the sample. Brennan said the approach of two-way flow is greatly enhanced detection limits due to possible analit-analit berinkubasi in Ache sensing zone before science came.

This research team tested the method on real foods such as milk and apple juice that has been laced with pesticides and found that the effective paper-based sensors to detect contaminants. When they tested undelete taken from apple sprayed with pesticides, paper-based test results comparable with conventional mass spectrometry methods.

"Test analit less competitive which, rather than increases, the signal typically still less explored for these tests compared to paper-based direct test," said Samuel Sia of biomedical engineering at Columbia University, U.S..

The researchers hope that their approach could be used for screening runut elements of pesticides in the environment and food samples-smpel in the field. However, although these devices have an active period of at least one month if stored at 4oC, Sia stressed that this can still be a stumbling block in some situations, for storage at 4oC "not feasible in most areas located in remote areas".

Adapted from: chemistryworld

12 November 2009

Download SKL UN SMP/SMA/MA/SMK TAHUN 2009/2010 (Permen No. 75 Tahun 2009)

Dalam rangka mempersiapkan para siswa dalam menempuh UN Tahun 2009/2010, silahkan download dokumen SKL UN Tahun 2009/2010 (Permen No 75 Tahun 2009) sebagai berikut :

DOWNLOAD SKL DI SINI

06 November 2009

DOWNLOAD NILAI MID SEM-1 TAHUN 2009/2010

Kepada seluruh siswa SMA N 1 Simo Boyolali, untuk melihat nilai mid linsemester 1 tahun 2009/2010 silahkan download link di bawah ini :

  1. Nilai Kimia kelas X
  2. Nilai seluruh mata pelajaran (Tunggu hari Senin, 9 November 2009)