Three color variants of the sea cucumber,Apostichopus japonicus are recognized,the red one is highly valued in the market. When the red variant is cultured in ponds in China,its body color changes from red to celadon ...Three color variants of the sea cucumber,Apostichopus japonicus are recognized,the red one is highly valued in the market. When the red variant is cultured in ponds in China,its body color changes from red to celadon in 3–6 months. The effects of water depth and substrate color on the growth and body color of this animal were investigated. Juveniles of red A. japonicus were cultured in cages suspended at a range of water depths(20,50,100,150 and 200 cm). The specific growth rate of red sea cucumbers was significantly higher in animals cultured at deeper water layers compared with those grown at shallowers. Body weights were greatest for sea cucumbers cultured at a depth of 150 cm and their survival rates were highest at a depth of 200 cm. A scale to evaluate the color of red sea cucumbers(R value) was developed using a Pantone standard color card. All stocked animals in the 9-month trial retained a red color,however the red body color was much more intense in sea cucumbers cultured at shallower depths,while animals suspended in deeper layers became pale. In a separate trial,A. japonicus were cultured in suspended cages with seven different colored substrates. Substrate color had a significant effect on the growth and body-color of red A. japonicus. The yield were greatest for A. japonicus cultured on a yellow substrate,followed by green > white > orange > red > black and blue. All sea cucumbers in the 7-month trial retained a red color,although the red was most intense(highest R value) in animals cultured on a blue substrate and pale(lowest R value) for animals cultured on a green substrate.展开更多
Rose is one of the farming products that used as an accessory plantation, which is also known to contain vitamin C and anthocyanins which can be used as an antioxidant. The purpose of this study is to identify the col...Rose is one of the farming products that used as an accessory plantation, which is also known to contain vitamin C and anthocyanins which can be used as an antioxidant. The purpose of this study is to identify the colour effect of flower through the quality effervescent tablet, to know the interaction between the flower colour and the sugar type through the quality effervescent rose tablet. This study was done with two steps. Step I was divided into 2 levels of examinations using simple random： Rose colouring, M1 （dark red） and M2 （pink）, while step II consisted of three levels of examinations, those were G 1 （sucrose）, G2 （dextrose）, and G3 （sorbitol）. The result showed that the dark red colour has a better extract pigment quality, the level of the light color （L） was 77.3 and the redness level （b＋） was 25.033. The best rose effervescent tablet was produced by the combination of M 1 G3 （dark red： corn sugar/sorbitol）, that has 8.179% of water content; the solute velocity was 0.029 g/sec; the lightness level （L） was 84.133, the redness level （a＋） was 18.3. The product of the rose effervescent drinks has a value of 6.46 pH; viscosities 342.867 cps and total of sugar 52.150%.展开更多
基金Supported by the National Natural Science Foundation of China(No.31440089)the National Spark Program of China(No.2014GA690259)+2 种基金the National Marine Public Welfare Project of China(No.200905020)the Natural Science Research General Program of Jiangsu Provincial Higher Education Institutions(No.14KJD240002)the Special Guide Fund Project of Agricultural Science and Technology Innovation of Yancheng(No.13KJB610056)
文摘Three color variants of the sea cucumber,Apostichopus japonicus are recognized,the red one is highly valued in the market. When the red variant is cultured in ponds in China,its body color changes from red to celadon in 3–6 months. The effects of water depth and substrate color on the growth and body color of this animal were investigated. Juveniles of red A. japonicus were cultured in cages suspended at a range of water depths(20,50,100,150 and 200 cm). The specific growth rate of red sea cucumbers was significantly higher in animals cultured at deeper water layers compared with those grown at shallowers. Body weights were greatest for sea cucumbers cultured at a depth of 150 cm and their survival rates were highest at a depth of 200 cm. A scale to evaluate the color of red sea cucumbers(R value) was developed using a Pantone standard color card. All stocked animals in the 9-month trial retained a red color,however the red body color was much more intense in sea cucumbers cultured at shallower depths,while animals suspended in deeper layers became pale. In a separate trial,A. japonicus were cultured in suspended cages with seven different colored substrates. Substrate color had a significant effect on the growth and body-color of red A. japonicus. The yield were greatest for A. japonicus cultured on a yellow substrate,followed by green > white > orange > red > black and blue. All sea cucumbers in the 7-month trial retained a red color,although the red was most intense(highest R value) in animals cultured on a blue substrate and pale(lowest R value) for animals cultured on a green substrate.
文摘Rose is one of the farming products that used as an accessory plantation, which is also known to contain vitamin C and anthocyanins which can be used as an antioxidant. The purpose of this study is to identify the colour effect of flower through the quality effervescent tablet, to know the interaction between the flower colour and the sugar type through the quality effervescent rose tablet. This study was done with two steps. Step I was divided into 2 levels of examinations using simple random： Rose colouring, M1 （dark red） and M2 （pink）, while step II consisted of three levels of examinations, those were G 1 （sucrose）, G2 （dextrose）, and G3 （sorbitol）. The result showed that the dark red colour has a better extract pigment quality, the level of the light color （L） was 77.3 and the redness level （b＋） was 25.033. The best rose effervescent tablet was produced by the combination of M 1 G3 （dark red： corn sugar/sorbitol）, that has 8.179% of water content; the solute velocity was 0.029 g/sec; the lightness level （L） was 84.133, the redness level （a＋） was 18.3. The product of the rose effervescent drinks has a value of 6.46 pH; viscosities 342.867 cps and total of sugar 52.150%.
