Manfaat buah anggur untuk diet : Banyak alternatif buah-buahan yang bisa anda jadikan sebagai alternatif untuk dapat menjadikan tubuh langsing dan menjaga berat badan tetap ideal. Salah satunya adalah buah anggur. Mengkonsumsi buah anggur secara rutin dan teratur terbukti bisa untuk membantu menurunkan berat badan dan menjaganya agar tetap ideal.

Manfaat buah anggur untuk turunkan badan dan tekan obesitas

Sebuah penelitian untuk dapat mengetahui manfaat buah anggur telah dilakukan oleh dua ilmuan dari Purdue Uneversity yaitu Kee-Hong Kim dan Jung Yeon Kwon. Mereka telah menemukan bahwa senyawa dalam minuman anggur merah, buah anggur dan beberapa jenis buah lainya yang mirip dengan struktur resveratrol. Senyawa ini telah mampu memblok proses seluler yang memungkinkan sel-sel lemak untuk berkembang.

Kedua ilmuan tersebut juga telah melaporkan bahwa dalam anggur terdapat senyawa piceatannol yang telah memiliki kemampuan untuk memblok sel lemak yang belum matang untuk tumbuh dan berkembang. Piceatannol ini juga baik untuk kesehatan tubuh karena dipercaya mampu untuk memerangi kanker, penyakit jantung dan penyakit neurodegeratif. Para ilmuan-pun juga berpendapat, bahwa piceatannol mungkin dapat menjadi salah satu “senjata penting” untuk melawan obesitas

Peranan Piceatannol untuk penderita obesitas

Piceatannol juga merupakan hasil dari perubahan Resveratrol. Perubahan ini telah terjadi dalam tubuh manusia setelah mengkonsumsi makanan yang mengandung senyawa tersebut.

Piceatannol telah memiliki kemampuan untuk dapat merubah ekspresi gen, fungsi gen dan kerja insulin selama adipogenesis yaitu proses awal sel lemak berubah menjadi sel lemak matang. Dengan keberadaan piceatannol, maka proses adipogenesis dapat ditunda atau dihambat.

Kim juga menerangkan, selama periode 10 hari atau lebih, sel-sel lemak yang ada di dalam tubuh biasanya belum terlalu matang, fase ini disebut preadipocytes. Namun setelah melalui beberapa tahapan, sel-sel lemak itu berubah menjadi matang, atau biasa disebut adipocytes.

"Kami juga menganggap, proses adipogenesis adalah target yang tepat untuk menunda atau mencegah akumulasi sel lemak," katanya.

Kim juga menambahkan, piceatannol mampu mengikat reseptor insulin dari sel-sel lemak yang belum matang pada tahap pertama proses adipogenesis. Piceatannol juga bekerja dengan menghalangi jalur sel-sel lemak untuk berproduksi dan tumbuh.

Penelitan tentang Piceatannol yang juga terkandung dalam biji dan kulit anggur, blueberry, markisa dan buah lainnya hingga kini masih dilakukan untuk lebih mengetahui manfaat dan khasiatnya bagi kesehatan tubuh selain dari peranannya untuk dapat menghambat proses pematangan lemak dalam tubuh.

Dengan membaca artikel diatas, tentunya anda tidak perlu ragu lagi untuk meneruskan mengkonsumsi buah anggur, karena manfaat buah anggur untuk diet sudah bisa dibuktikan secara ilmiah.

Though Robin and Joan Rolfs owned two rare talking dolls manufactured by Thomas Edison’s phonograph company in 1890, they did not dare play the wax cylinder records tucked inside each one.

The Rolfses, longtime collectors of Edison phonographs, knew that if they turned the cranks on the dolls’ backs, the steel phonograph needle might damage or destroy the grooves of the hollow, ring-shaped cylinder. And so for years, the dolls sat side by side inside a display cabinet, bearers of a message from the dawn of sound recording that nobody could hear.

In 1890, Edison’s dolls were a flop; production lasted only six weeks. Children found them difficult to operate and more scary than cuddly. The recordings inside, which featured snippets of nursery rhymes, wore out quickly.

Yet sound historians say the cylinders were the first entertainment records ever made, and the young girls hired to recite the rhymes were the world’s first recording artists.

Year after year, the Rolfses asked experts if there might be a safe way to play the recordings. Then a government laboratory developed a method to play fragile records without touching them.

The technique relies on a microscope to create images of the grooves in exquisite detail. A computer approximates — with great accuracy — the sounds that would have been created by a needle moving through those grooves.

In 2014, the technology was made available for the first time outside the laboratory.

“The fear all along is that we don’t want to damage these records. We don’t want to put a stylus on them,” said Jerry Fabris, the curator of the Thomas Edison Historical Park in West Orange, N.J. “Now we have the technology to play them safely.”

Last month, the Historical Park posted online three never-before-heard Edison doll recordings, including the two from the Rolfses’ collection. “There are probably more out there, and we’re hoping people will now get them digitized,” Mr. Fabris said.

The technology, which is known as Irene (Image, Reconstruct, Erase Noise, Etc.), was developed by the particle physicist Carl Haber and the engineer Earl Cornell at Lawrence Berkeley. Irene extracts sound from cylinder and disk records. It can also reconstruct audio from recordings so badly damaged they were deemed unplayable.

“We are now hearing sounds from history that I did not expect to hear in my lifetime,” Mr. Fabris said.

The Rolfses said they were not sure what to expect in August when they carefully packed their two Edison doll cylinders, still attached to their motors, and drove from their home in Hortonville, Wis., to the National Document Conservation Center in Andover, Mass. The center had recently acquired Irene technology.

Cylinders carry sound in a spiral groove cut by a phonograph recording needle that vibrates up and down, creating a surface made of tiny hills and valleys. In the Irene set-up, a microscope perched above the shaft takes thousands of high-resolution images of small sections of the grooves.

Stitched together, the images provide a topographic map of the cylinder’s surface, charting changes in depth as small as one five-hundredth the thickness of a human hair. Pitch, volume and timbre are all encoded in the hills and valleys and the speed at which the record is played.

At the conservation center, the preservation specialist Mason Vander Lugt attached one of the cylinders to the end of a rotating shaft. Huddled around a computer screen, the Rolfses first saw the wiggly waveform generated by Irene. Then came the digital audio. The words were at first indistinct, but as Mr. Lugt filtered out more of the noise, the rhyme became clearer.

“That was the Eureka moment,” Mr. Rolfs said.

In 1890, a girl in Edison’s laboratory had recited:

There was a little girl,

And she had a little curl

Right in the middle of her forehead.

When she was good,

She was very, very good.

But when she was bad, she was horrid.

Recently, the conservation center turned up another surprise.

In 2010, the Woody Guthrie Foundation received 18 oversize phonograph disks from an anonymous donor. No one knew if any of the dirt-stained recordings featured Guthrie, but Tiffany Colannino, then the foundation’s archivist, had stored them unplayed until she heard about Irene.

Last fall, the center extracted audio from one of the records, labeled “Jam Session 9” and emailed the digital file to Ms. Colannino.

“I was just sitting in my dining room, and the next thing I know, I’m hearing Woody,” she said. In between solo performances of “Ladies Auxiliary,” “Jesus Christ,” and “Dead or Alive,” Guthrie tells jokes, offers some back story, and makes the audience laugh. “It is quintessential Guthrie,” Ms. Colannino said.

The Rolfses’ dolls are back in the display cabinet in Wisconsin. But with audio stored on several computers, they now have a permanent voice.