Difference between revisions of "Team:Kobe/HP/Gold Integrated"

 
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</div>
 
</div>
 
<h1>Visit to tea farm</h1>
 
<h1>Visit to tea farm</h1>
−
<p>Although content of L-theanine is an indicator of good Japanese tea, there are also various other indications of tea quality. Our tea-quality theanine sensor should be useful when our project reflects the actual situation of tea industry. The best way to learn and better understand the current situation of Japanese tea world is, literary to get out of the lab and experience it with our hearts.</p>  
+
<p>For our Human Practice project, we hope to help promoting Japanese tea with our biosensor. Our tea-quality theanine sensor should be useful when our project reflects the actual situation of tea industry. The best way to learn and better understand the current situation of Japanese tea world is, literally to get out of the lab and experience it with our hearts!</p>  
 
     <h3>
 
     <h3>
−
         <br/>Interview with Mr.Matsumoto: The owner of a farm house, “Teppen”
+
         <br/><br/><br/>Interview with Mr.Matsumoto: The owner of a farm house, “Teppen”
 
     </h3>
 
     </h3>
 
     <p>
 
     <p>
 
         8 Oct. 2017
 
         8 Oct. 2017
 
<br />
 
<br />
−
  <br />      We visited a tea farm house, “Teppen” in Ehime prefecture.
+
  <br />      We visited a tea farm house, “Teppen” in Ehime prefecture.
 
         <br />
 
         <br />
−
       <br /> <a href="https://teppen-stay.jimdo.com/%E3%81%A6%E3%81%A3%E3%81%BA%E3%82%93%E7%B4%85%E8%8C%B6/">The link of the inn</a>  
+
       <br /> <a href="https://teppen-stay.jimdo.com/">The link of the farm house</a>  
 
         <br />
 
         <br />
−
   <br />    They cultivate “Yabukita”, a type of tea plant usually used for green tea.
+
   <br />    They cultivate “Yabukita”, a type of tea plant usually used for green tea. We heard a lot of interesting and useful information related to our project. <br/><br/>Below are the topics we heard.  
−
  <br />    We heard a lot of interesting and useful information related to our project.
+
−
  <br />     Below is the information that we have gathered there.  
+
  
 
     </p>
 
     </p>
−
     <h4>
+
     <h4><br/>
−
         o Most of the market green tea contains some additives.  
+
         ○ Some of the marketed green tea contains additives.  
 
     </h4>
 
     </h4>
  
 
     <p>
 
     <p>
−
         They sometimes tastes  marketed tea.
+
         They sometimes tastes  marketed tea pruduct.
−
         Cheap or imported ones often contain the additive to enhance the taste of the tea.
+
         Cheap or imported ones often contain additives to enhance the taste of the tea.
  
 
     </p>
 
     </p>
 
     <p>
 
     <p>
−
         Mr.Matsumoto saids he can test the amount of additives in tea by putting it overnight. If there are a lot of additives, the tea will turn into a milky color.
+
         Mr.Matsumoto said he can learn whether additives are contained in the tea or not by putting it overnight. If they contain lots of additives, the tea will turn into milky color.
 
     </p>
 
     </p>
  
 
     <p>
 
     <p>
−
         According to the following references, the custome of adding monosodium glutamate (MSG) into green tea is widely seen from Sanin Region through into the Hokuriku region in Japan.
+
         According to the following references, the custom of adding monosodium glutamate (MSG) into green tea is widely seen from Sanin Region through into the Hokuriku region in Japan.<br/>
−
         <br />後藤 哲久・堀江 秀樹・向井 俊博（2009），添加茶の化学成分による判別法（Japanese）
+
         <br /><a href="https://www.jstage.jst.go.jp/article/cha1953/1992/76/1992_76_33/_pdf">添加茶の化学成分による判別法</a>（Japanese)
 
     </p>
 
     </p>
 
     <p>
 
     <p>
−
         The grade of green tea can be determined by the ratio of glutamate content to the theanine content.
+
         The amount of additives in tea can be determined by the ratio of glutamate content to the theanine content.
 
     </p>
 
     </p>
 
     <p>
 
     <p>
−
         In the case of tea without additives, the value of this ratio is about 0.2 or less. However, this ratio sometimes exceeds more than 0.4 in cases where the tea is containing the additive. Glutamate is often added to enhance umami in Japanses green tea, but that taste is quite different from the original one(umami of theanine). Our theanine sensor can be used to detect additive in tea.
+
         In the case of natural tea (without additives), the value of this ratio is about 0.2 or less. However, this ratio sometimes exceeds more than 0.4 in cases where the tea is containing the additive. Glutamate is often added to enhance umami in Japanese green tea, but that taste is quite different from the original one(umami of theanine). Our theanine sensor can be used to detect the additives in tea.
 
     </p>
 
     </p>
  
−
     <h4>
+
     <h4><br/>
−
         ○The taste of green tea is often affected by many factors.
+
         ○The taste of green tea is affected by many factors.
 
     </h4>
 
     </h4>
 
     <p>
 
     <p>
−
         There are many factors that could change the taste of tea. The taste of tea is variable even if it is cultivated in the same way.
+
         There are many factors that could change the taste of tea. The taste of tea is variable even if it is cultivated in the same way.
−
         For example,the factors include the difference of place like facing across the road, the degree of damage done by insects and the different way of how people processed the tea.
+
         For example, the factors include the places they are planted, the degree of damage caused by insects, and the way of processing the tea.
  
 
     </p>
 
     </p>
 
     <p>  
 
     <p>  
−
         Only the large scale facilities own the devices to analyze the components in tea because they are expensive. Small farms can't afford that devices so they can't check their tea quality anytime they want. We realized again the importance of inexpensive way to measure the tea quality.
+
         Only the large scale facilities own the devices to analyze the components in tea because such devices are expensive. Small farms cannot afford them so they cannot check their tea quality when they want. We realized again the importance of synthetic biological tool to measure the tea quality.
 
     </p>
 
     </p>
  
−
     <h4>
+
     <h4><br/>
 
         ○Decrease in consumption of green tea
 
         ○Decrease in consumption of green tea
 
     </h4>
 
     </h4>
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     </p>
 
     </p>
 
     <p>
 
     <p>
−
         Indeed, the tea farmers also mentioned the decrease in green tea sales.To promote the Japanese green tea, but to make Japanese understand the health benefits brought by natural green tea is important.    </p>
+
         Indeed, the tea farmers also mentioned the decrease in green tea sales. Our "theanine sensor" would help promoting Japanese tea.
−
    <p>
+
Natural green tea contains a lot of L-theanine. Our sensor will prove that!
−
        "Theanine sensor" would help promoting Japanese tea by appealing Japanese teapeople are  to beverages with health claims good healthy benefits but these beverages are added by Theanine artificially.
+
−
 
+
−
Natural green tea contains a lot of L-theanine. Our sensor will prove the fact to the public.
+
−
 
+
 
     </p>
 
     </p>
 
      
 
      
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       <img src="https://static.igem.org/mediawiki/2017/c/c1/T--Kobe--HP10.jpg"/>
 
       <img src="https://static.igem.org/mediawiki/2017/c/c1/T--Kobe--HP10.jpg"/>
 
       <figcaption>
 
       <figcaption>
−
           Tea leaves were heated to be soften.
+
           Tea leaves were heated to be softened.
 
       </figcaption>
 
       </figcaption>
 
   </figure>
 
   </figure>
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         <img src="https://static.igem.org/mediawiki/2017/8/88/T--Kobe--HP11.jpg"/>
 
         <img src="https://static.igem.org/mediawiki/2017/8/88/T--Kobe--HP11.jpg"/>
 
         <figcaption>
 
         <figcaption>
−
             Hand-rolling todry tea leaves
+
             Hand-rolling to dry tea leaves
 
         </figcaption>
 
         </figcaption>
 
     </figure>
 
     </figure>
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         <img src="https://static.igem.org/mediawiki/2017/0/07/T--Kobe--HP14.jpg" />
 
         <img src="https://static.igem.org/mediawiki/2017/0/07/T--Kobe--HP14.jpg" />
 
         <figcaption>
 
         <figcaption>
−
             They helped us create our booklets</figcaption>
+
             They helped us create our booklets.</figcaption>
 
     </figure>
 
     </figure>
 
</br>
 
</br>
  
 
     <h3>
 
     <h3>
−
         Interview with the representative of Benifuuki group  
+
         <br/><br/><br/><br/>Interview with the representative of Benifuuki group  
 
     </h3>
 
     </h3>
 
     <p>
 
     <p>
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     <img src="https://static.igem.org/mediawiki/2017/7/77/T--Kobe--HP15.jpg" />
 
     <img src="https://static.igem.org/mediawiki/2017/7/77/T--Kobe--HP15.jpg" />
 
     <p>
 
     <p>
−
         We interviewed with the representative of Benifuuki group.  
+
         We interviewed the representative of Benifuuki group.  
 
     </p>
 
     </p>
 
     <p>
 
     <p>
−
         “Benifuuki” is a type of tea commonly used for black tea. But these days, it is also used for green tea because of its high content of catechin, the substance which suppress the symptoms of hay fever.
+
         “Benifuuki” is a type of tea commonly used for black tea. But these days, it is also used for green tea because of its high content of catechin, the substance which suppresses the symptoms of hay fever.
−
         We learned interesting story there.
+
         We heard interesting stories there.
−
<br />     Below is the information we have gathered there.
+
<br /><br />        </p>
  
−
    </p>
+
          
−
 
+
<h4><br/>
−
    <h4>
+
         The necessity of small device to analyze  the components of tea accurately
−
         ○Shortage of successors due to the aging of population. 
+
−
    </h4>
+
−
    <p>
+
−
        There are many tea plantations which have been left and forgotten for years.
+
−
These days, they changed their orange farms into tea plantation because tea is easier to grow. So they grow “Benifuuki” which is new breed and attracts the customers for its reducing effect of the hay fever symptoms .
+
−
           
+
−
 
+
−
    </p>
+
−
    <figure>
+
−
         <img src="https://static.igem.org/mediawiki/2017/1/10/T--Kobe--HP16.jpg" />
+
−
        <figcaption>A tea plantation that is left to grow</figcaption>
+
−
    </figure>
+
−
   
+
−
<h4>
+
−
        ○The necessity of small device which can analyze  the components of tea accurately
+
 
</h4>
 
</h4>
  
 
<p>
 
<p>
  
−
                     To analyze the component of tea in a way that is publicly certified is difficult on a small scale.
+
                     Analyzing the component of tea in a publicly certified way is difficult without costs.
−
            They said that the content of catechin affects sales directly.
+
                      We believe that small biosensor will be able to measure the components of tea accurately and will be publicly certified.
−
            They contain a lot of cathchin but they cannot appeal about this because its small scale.
+
−
            We believe that small biosensor will be able to measure the components of tea accurately and will be publicly certified.
+
 
     </p>
 
     </p>
 
     <img src="https://static.igem.org/mediawiki/2017/c/cd/T--Kobe--HP17.jpg" />
 
     <img src="https://static.igem.org/mediawiki/2017/c/cd/T--Kobe--HP17.jpg" />
  
 
     </br>
 
     </br>
−
 
+
<br> </br>
−
     <h3>
+
     <h1><br/><br/><br/>
−
         Survey on tea culture
+
         Survey on Tea Culture
−
     </h3>
+
     </h1>
 
     <p>
 
     <p>
−
       As a human practice project, we decided to help promoting Japanese tea to the world. We carried out a survey to collect useful data when promoting Japanese tea.  
+
       As a human practice project, we decided to help promoting Japanese tea to the world. We carried out a survey to collect useful data for promoting Japanese tea.  
−
         .
+
          
 
     </p>
 
     </p>
 
     <img src="https://static.igem.org/mediawiki/2017/f/f6/T--Kobe--HP18.jpg" />
 
     <img src="https://static.igem.org/mediawiki/2017/f/f6/T--Kobe--HP18.jpg" />
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     </p>
 
     </p>
 
     <img src="https://static.igem.org/mediawiki/2017/a/a1/T--Kobe--HP19.jpg" />
 
     <img src="https://static.igem.org/mediawiki/2017/a/a1/T--Kobe--HP19.jpg" />
−
    <img src="https://static.igem.org/mediawiki/2017/1/15/T--Kobe--HP20.jpg" />
+
        <img src="https://static.igem.org/mediawiki/2017/1/15/T--Kobe--HP20.jpg" />
  
 
     <p>
 
     <p>
−
         As indicated in the chart, Japan has the greater number of people who enjoys tea.
+
         As indicated in the chart above, in Japan, there are greater number of people who enjoy tea.  
−
         For this data, enjoying the taste of tea has become a part of Japanese culture.
+
         For this data, we can say that enjoying the taste of tea has become an important part of Japanese culture.
 
     </p>
 
     </p>
 +
<img src="https://static.igem.org/mediawiki/2017/7/73/T--Kobe--HP23.jpg" />
 +
    <img src="https://static.igem.org/mediawiki/2017/2/27/T--Kobe--HP24.jpg" />
 +
    <p>
 +
        All participants who took the survey have already tasted green tea somewhere. Most of them already heard about  Japanese tea product.
 +
        Japanese tea seems to be more famous than we have thought.
 +
    </p>
 +
<img src="https://static.igem.org/mediawiki/2017/4/4d/T--Kobe--HP27.jpg"/>
 +
 
     <p>
 
     <p>
−
         Even though enjoying the taste of green tea is a Japanese culture, green tea doesn’t have big market share in Japan compared to other region.
+
         Even though green tea has been an important part of food culture in Japan, green tea does not have big market share in Japan compared to other region.
 
     </p>
 
     </p>
 
     <img src="https://static.igem.org/mediawiki/2017/9/93/T--Kobe--HP21.jpg" />
 
     <img src="https://static.igem.org/mediawiki/2017/9/93/T--Kobe--HP21.jpg" />
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     <p>
 
     <p>
−
         In all regions, at least about 40% people think that health effect is a very important aspect when choosing tea. Most of  them know that different type of tea have different effects on ones health.
+
         In all regions, at least about 40% people think that health effect is a very important aspect when choosing tea. Most of  them know that different type of tea have different effects on one's health.
−
         Many people are interested in health effects of tea. The day that theanine gets a lot of attention is near.
+
         Many people are interested in health effects of tea. The day that theanine attract attention is near.
 
     </p>
 
     </p>
−
    <img src="https://static.igem.org/mediawiki/2017/7/73/T--Kobe--HP23.jpg" />
+
         <img src="https://static.igem.org/mediawiki/2017/3/39/T--Kobe--HP25.jpg" />
−
    <img src="https://static.igem.org/mediawiki/2017/2/27/T--Kobe--HP24.jpg" />
+
−
    <p>
+
−
         All participants who took the survey have already tasted green tea somewhere. Most of them already heard about  Japanese tea product.
+
−
        Japanese tea is more famous than we have thought.
+
−
    </p>
+
−
    <img src="https://static.igem.org/mediawiki/2017/3/39/T--Kobe--HP25.jpg" />
+
 
     <img src="https://static.igem.org/mediawiki/2017/2/28/T--Kobe--HP26.jpg" />
 
     <img src="https://static.igem.org/mediawiki/2017/2/28/T--Kobe--HP26.jpg" />
  
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     <p>
 
     <p>
−
         Theanine is more familiar in Japan was higher compared to other regions. (Except for category other regions in which there are only two people in this category and they know Theanine.)
+
         Theanine is more familiar in Japan than in other regions. (Except for category other regions in which there are only two people.)
−
         There are some people who pointed out that Japanese has a lot of interest in the healthy beverage in the free-answer column of the survey.
+
         Some people pointed out that Japanese has a lot of interest in the healthy beverage in the free-answer column of the survey.
−
         We agree with this opinion. They heard about theanine in various situations and was reported in a variety of media in Japan.
+
         We agree with this opinion.   </p>
−
    </p>
+
  
 
     <p>
 
     <p>
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             <ul style="list-style-type: circle">
 
             <ul style="list-style-type: circle">
−
        <li>Ehime Prefecture International Center<br /> Secretary‐general　Ryo Takaoka</li>
+
            <li>Ehime Prefecture International Center<br /> Secretary‐general　Ryo Takaoka</li>
 
             <li>Matsuyama International Center（MIC）　<br />Maki Mizuno</li>
 
             <li>Matsuyama International Center（MIC）　<br />Maki Mizuno</li>
 
             <li>愛媛県中予地方局商工観光室 <br />Miyuki Yamanaka</li>
 
             <li>愛媛県中予地方局商工観光室 <br />Miyuki Yamanaka</li>
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         }
 
         }
 
         img{
 
         img{
−
         max-width:100%
+
         max-width:100%;
 +
       
 
         }
 
         }
  

Latest revision as of 18:08, 15 December 2017


Integrated Human Practices

Visit to tea farm

For our Human Practice project, we hope to help promoting Japanese tea with our biosensor. Our tea-quality theanine sensor should be useful when our project reflects the actual situation of tea industry. The best way to learn and better understand the current situation of Japanese tea world is, literally to get out of the lab and experience it with our hearts!




Interview with Mr.Matsumoto: The owner of a farm house, “Teppen”

8 Oct. 2017

We visited a tea farm house, “Teppen” in Ehime prefecture.

The link of the farm house

They cultivate “Yabukita”, a type of tea plant usually used for green tea. We heard a lot of interesting and useful information related to our project.

Below are the topics we heard.


○ Some of the marketed green tea contains additives.

They sometimes tastes marketed tea pruduct. Cheap or imported ones often contain additives to enhance the taste of the tea.

Mr.Matsumoto said he can learn whether additives are contained in the tea or not by putting it overnight. If they contain lots of additives, the tea will turn into milky color.

According to the following references, the custom of adding monosodium glutamate (MSG) into green tea is widely seen from Sanin Region through into the Hokuriku region in Japan.

添加茶の化学成分による判別法（Japanese)

The amount of additives in tea can be determined by the ratio of glutamate content to the theanine content.

In the case of natural tea (without additives), the value of this ratio is about 0.2 or less. However, this ratio sometimes exceeds more than 0.4 in cases where the tea is containing the additive. Glutamate is often added to enhance umami in Japanese green tea, but that taste is quite different from the original one(umami of theanine). Our theanine sensor can be used to detect the additives in tea.


○The taste of green tea is affected by many factors.

There are many factors that could change the taste of tea. The taste of tea is variable even if it is cultivated in the same way. For example, the factors include the places they are planted, the degree of damage caused by insects, and the way of processing the tea.

Only the large scale facilities own the devices to analyze the components in tea because such devices are expensive. Small farms cannot afford them so they cannot check their tea quality when they want. We realized again the importance of synthetic biological tool to measure the tea quality.


○Decrease in consumption of green tea

According to the following references, the consumption of green tea in Japan is decreasing these days.

茶類の国内消費量の推移（Japanese）

Indeed, the tea farmers also mentioned the decrease in green tea sales. Our "theanine sensor" would help promoting Japanese tea. Natural green tea contains a lot of L-theanine. Our sensor will prove that!

After the interview, the owner generously allowed us to experience tea-picking and hand-rolling. (Hand rolling is the primary process of making green tea)

Tea-picking
Tea leaves were heated to be softened.
Hand-rolling to dry tea leaves
Green tea was exposed in the sun. Dried tea leaves can be preserved for a long time.
They helped us create our booklets.





Interview with the representative of Benifuuki group

9 Oct. 2017

We interviewed the representative of Benifuuki group.

“Benifuuki” is a type of tea commonly used for black tea. But these days, it is also used for green tea because of its high content of catechin, the substance which suppresses the symptoms of hay fever. We heard interesting stories there.


The necessity of small device to analyze the components of tea accurately

Analyzing the component of tea in a publicly certified way is difficult without costs. We believe that small biosensor will be able to measure the components of tea accurately and will be publicly certified.







Survey on Tea Culture

As a human practice project, we decided to help promoting Japanese tea to the world. We carried out a survey to collect useful data for promoting Japanese tea.

Percentage of individuals from different places who took the survey.

As indicated in the chart above, in Japan, there are greater number of people who enjoy tea. For this data, we can say that enjoying the taste of tea has become an important part of Japanese culture.

All participants who took the survey have already tasted green tea somewhere. Most of them already heard about Japanese tea product. Japanese tea seems to be more famous than we have thought.

Even though green tea has been an important part of food culture in Japan, green tea does not have big market share in Japan compared to other region.

In all regions, at least about 40% people think that health effect is a very important aspect when choosing tea. Most of them know that different type of tea have different effects on one's health. Many people are interested in health effects of tea. The day that theanine attract attention is near.

Theanine is more familiar in Japan than in other regions. (Except for category other regions in which there are only two people.) Some people pointed out that Japanese has a lot of interest in the healthy beverage in the free-answer column of the survey. We agree with this opinion.

Organization Chart

  • Ehime Prefecture International Center
    Secretary‐general　Ryo Takaoka
  • Matsuyama International Center（MIC）　
    Maki Mizuno
  • 愛媛県中予地方局商工観光室
    Miyuki Yamanaka
  • 愛媛県港湾管理事務所

Our sincere thanks to these people!