Abstract: The present invention relates to a vacuum-packed coconut, a preparation method thereof and a ready-to-drink trimmed coconut. The preparation method comprises the following steps: removing a shell of a fresh coconut to obtain a peeled coconut; letting the peeled coconut stand-still at room temperature for at least 10 hours to obtain a still-stood coconut; heating the still-stood coconut with a fluid at a temperature from 70 to 110° C. for 15 minutes to 40 minutes to obtain a fluid-heated coconut; and putting the fluid-heated coconut into a packing bag and then vacuuming the packing bag to obtain a vacuum-packed coconut. The advantages of the present invention include no air-pollution, stable quality, hygiene and prolonged storage period of the coconut products while maintaining the rich flavor of traditional roasted coconut.

Abstract: The present invention relates to a vacuum-packed coconut, a preparation method thereof and a ready-to-drink trimmed coconut. The preparation method comprises the following steps: removing a shell of a fresh coconut to obtain a peeled coconut; letting the peeled coconut stand-still at room temperature for at least 10 hours to obtain a still-stood coconut; heating the still-stood coconut with a fluid at a temperature from 70 to 110° C. for 15 minutes to 40 minutes to obtain a fluid-heated coconut; and putting the fluid-heated coconut into a packing bag and then vacuuming the packing bag to obtain a vacuum-packed coconut. The advantages of the present invention include no air-pollution, stable quality, hygiene and prolonged storage period of the coconut products while maintaining the rich flavor of traditional roasted coconut.

Abstract: A digital spectrophotometer and a spectrologial method for determining spectrum wavelength of an unknown illuminant, and the digital spectrophotometer has a base, an operating assembly and a photographic assembly. The operating assembly is attached to the base and has an operating pedestal, a rotating frame and a spectrometer. The rotating frame is connected rotatably to the operating pedestal. The spectrometer is connected solidly to the rotating frame. The photographic assembly is connected to the operating assembly. The spectrologial method is calculated the diffraction angle ? i and the wavelength of the unknown illuminant by putting the parameters into the into the first and second functions.

Abstract: A digital spectrophotometer and a spectrologial method for determining spectrum wavelength of an unknown illuminant, and the digital spectrophotometer has a base, an operating assembly and a photographic assembly. The operating assembly is attached to the base and has an operating pedestal, a rotating frame and a spectrometer. The rotating frame is connected rotatably to the operating pedestal. The spectrometer is connected solidly to the rotating frame. The photographic assembly is connected to the operating assembly. The spectrologial method is calculated the diffraction angle ? i and the wavelength of the unknown illuminant by putting the parameters into the into the first and second functions.