Berita: Member baru? Bingung? Perlu bantuan? Silakan baca panduan singkat untuk ikut berdiskusi.

Selamat datang, Pengunjung. Silahkan masuk atau mendaftar. Apakah anda lupa aktivasi email?

Masuk dengan nama pengguna, kata sandi dan lama sesi

Penulis Topik: Vodka and Citrus Sodas Keep Cut Flowers Fresh  (Dibaca 2341 kali)

0 Anggota dan 1 Pengunjung sedang melihat topik ini.

Offline nandaz

  • Profesor
  • *****
  • Tulisan: 1837
  • IQ: 75
  • Gender: Pria
  • ...Mad about Sci_mistery
Vodka and Citrus Sodas Keep Cut Flowers Fresh
« pada: September 24, 2010, 03:00:36 PM »
 Dapat artikel copas dari forum lain, tetapi ini masih perlu diteliti lagi kebenarannya, siapa tau ada yang mau nanggepin kejadian ini atau mau ngetesnya pada bunga2 lain ... :)
Vodka and Citrus Sodas Keep Cut Flowers Fresh
Lemon-lime soda brightens those drooping bouquets and vodka gets in the way of aging

The day after Valentine's Day, flower bouquets from sweethearts around the world begin to fade. A rose's vibrant red dulls to dried-out brown, and flowers begin to droop. Some say adding a citrus-flavored soda, such as 7-Up or Sprite, or an alcohol like vodka to the vase of water will lengthen the time these flowers remain beautiful.

According to floriculturists, they are right; if the mixture of soda and water is in the correct proportion, a bouquet will remain bright, because the combination provides the flowers with the water and food they need. "The 7-Up formula works really well," says Susan Han, a professor in the plant, soil and insect science department at the University of Massachusetts Amherst. Vodka also works as a flower preservative by interfering with the plant's ripening process but it is less practical to use.

 Cut flowers, like those in a bouquet, are separated from their roots and no longer make food for themselves. Instead, their environment provides everything necessary to keep them fresh. Slightly acidic water travels up the stems to the flowers more rapidly than neutral or basic water, keeping the flowers hydrated and fresh. But in addition to water, plants need sugar for food.
This necessary combination of acidic water and sugar describes 7-Up or Sprite, says William Miller, a professor of horticulture at Cornell University. One can of either is loaded with citric acid that lowers the pH (increases the acidity) of the soda and contains about 38 grams of sugar. But, while water and sugar keep the flowers fresh, this mixture also encourages bacterial growth, which can harm the flowers. "So add bleach," Han says. A little bleach kills the bacteria without damaging the flowers.

When brewing this concoction, which is essentially what flower food packets hold, Miller and John Dole, a professor of horticulture at North Carolina State University, recommend one can of water for every can of soda added to the vase. Han, however, prefers a three-to-one ratio of water to soda, along with a few drops of bleach to kill the bacteria.

Vodka has a different effect on a bouquet of flowers: When added to a vase, it preserves them, probably by inhibiting ethylene production, Dole says. Ethylene is a ripening gas emitted by plants that helps them mature. Inhibiting this gas could slow wilting. Vodka, however, is not a very viable preservative. Plantslike many peoplecan only tolerate small concentrations of alcohol, up to eight percent, Dole explains, and 80-proof vodka from the liquor store is 40 percent alcohol. To be effective rather than harmful, the liquor would need to be dilutedInstead, growers use a more effective preservative, silver thiosulfate, which also inhibits ethylene, he says.

Other flower care strategies can help a bouquet stay beautiful. When the flowers arrive home, half an inch to an inch of the stem should be cut off. This prevents air from being sucked into the stem and creating a blockage in the plant's uptake system, Miller says. Also, removing the ends physically removes any bacteria that might be growing there, he adds. Roughly every three days another inch should be cut from the stem bottoms and the bouquet should be placed in a clean vase. "If you wouldn't drink out of your vase, don't be putting flowers in it," Dole advises. After fresh food and water are added to the clean vase, the bouquet should be placed in a bright, cool spot.

No matter what efforts are made, of course, over time the flowers will slowly die. "It is perfectly okay to go through and pluck out the dead flowers," Miller says. That way the remaining bouquet looks bright and pretty.

Sodas like 7-Up and Sprite may keep flowers from a sweetheart fresh but what keeps sweethearts fresh is not yet known to sciencethough vodka and soda might be key ingredients there, too.

sumber :
« Edit Terakhir: September 24, 2010, 03:10:05 PM by nandaz »
starting by doing what is necessary, then what is possible and suddenly you are doing the impossible...


Topik Terkait

  Subyek / Dimulai oleh Jawaban Tulisan terakhir
144 Jawaban
30130 Dilihat
Tulisan terakhir Juli 30, 2010, 03:43:42 PM
by syx



Oktober 08, 2016, 01:58:10 PM
adakah disini yang sedang atau pernah menggunakan aplikasi Lisrel?


September 26, 2016, 04:23:51 PM
ada yang bisa kasih lay out robot line follower analog gak? yang langsung bisa di print


September 26, 2016, 02:04:43 PM
koneksi gwa bermasalah disaat gwa mau submit post ke 666... hihihi kebetulan kah?


September 26, 2016, 01:22:58 PM
1 dulu ya? :) trit copas juga.

soalnya sy juga sibuk.


September 22, 2016, 05:25:04 PM

bantuin bikin thread. lagi sibuk jadi cuma sempat bikin copas dulu.


September 22, 2016, 09:24:18 AM
Thanks, om reborn :)
kirain ga bakal direnewal forumnya.
dah disebarin beritanya  >:(


September 21, 2016, 08:49:30 PM
oh BTW thanks ya om reborn :)
Wish You Luck!


September 21, 2016, 08:42:55 PM
Hahaha ternyata udah di renewal sama om reborn pas jam 11 tadi! ;D

diem-diem direnewal forumnya.



September 21, 2016, 10:30:32 AM
ForSa masih ada tapi expiration date tetap tanggal 21? Kita tunggu saja sampai pukul 18:23:19
sebab menurut data registrasi berakhir pada pukul 18:23


September 21, 2016, 10:30:09 AM
setiap member yang pake siggy juga ngalamin. saya juga.

Monox D. I-Fly

September 20, 2016, 10:39:22 PM
Kok di beberapa post siggy saya nggak muncul ya? Padahal masih thread yang sama...

Monox D. I-Fly

September 19, 2016, 05:26:35 PM
ini soal "memento" personal saya, bukan soal backup forum... btw kl bisa post di thread Mathematicards dong, biar saya gk double post di postingan ke-2000  ;D


September 19, 2016, 04:00:11 PM
kalo cara itu masih membutuhkan link ke ForSa dan anda mesti online utk mengaksesnya berarti sama saja dengan bookmark kan? dan bookmark tdk bisa menyelamatkan data dr website yg expired.

Monox D. I-Fly

September 17, 2016, 09:08:31 PM
Saya cukup ngepost di FB yang kayak begini:


September 17, 2016, 05:57:58 PM
mau online gak tanggal 20 malem hari?
kta chit chat habis-habisan? :)