Plant growth-promoting oligosaccharides produced from tomato waste.
Tomato juice waste was hydrolyzed with acid. Tomato juice waste (500 g; wet weight) was heated with 0.5 N HCl (2.5 l) at 70 degrees C for 4 h. After neutralization, the growth-promoting extracts (300 g; dry weight) in the plants were produced from the tomato waste. The acid extract significantly promoted the growth of cockscomb (Celosia argentea L.) and tomato (Lycopersicon esculentum L.) seedlings. We have recognized potent plant growth-promoting substances in the acid extract from tomato waste. The most effective components in the active fraction were almost all oligogalacturonic acids (DP 6-12). This paper is the first report that plant growth-promoting oligosaccharides can be directly produced from tomato juice waste. It is possible that the substances from the tomato waste can become useful plant growth regulators in the agriculture field in the future.
Suzuki
Toshisada
T
University of Tsukuba, Ibaraki, Japan.
Tomita-Yokotani
Kaori
K
Tsubura
Hirokazu
H
Yoshida
Shigeki
S
Kusakabe
Isao
I
Yamada
Kosumi
K
Miki
Yoichi
Y
Hasegawa
Koji
K
D027703:Amaranthaceae / Q000254:growth & development; D007220:Industrial Waste; D018551:Solanum lycopersicum / Q000254:growth & development / Q000378:metabolism*; D009844:Oligosaccharides / Q000096:biosynthesis*; D010937:Plant Growth Regulators / Q000096:biosynthesis*; D018505:Waste Management
D007220:Industrial Waste; D009844:Oligosaccharides; D010937:Plant Growth Regulators