12 results about "Chlorophyll b" patented technology

The application discloses a single-cell green alga chlorophyll synthesis-defective mutant strain and application thereof. The mutant strain includes Parachlorella kessleri SCUT-ACB 4 and SCUT-ACB 4-65, and the preservation numbers are CCTCC NO: M 2022518 and CCTCC NO: M 2022519, which are preserved in the China Center for Type Culture Collection of Wuhan University in Wuhan, China on April 28, 2022. Compared with wild-type algae strains, the mutant strain in the application fundamentally cuts off non-light-dependent chlorophyll synthesis, and the content of chlorophyll a is reduced by more than 98%, and the content of chlorophyll b is reduced by 100%, and the algal body is golden yellow, and the mutant strain can be used for producing protein, and provides high-yield and high-quality fermentation algae for replacing protein in precise fermentation production.

The application discloses a method for analyzing chlorophyll a, chlorophyll b and beta-carotene in plant extract, comprising the following steps: S1, using an ultraviolet-visible spectrometer to measure visible spectra of plant sample extract; S2, arranging ultraviolet spectrum data of multiple samples to obtain a bilinear mixed signal number array D, and using MCR-ALS algorithm to decompose the array into a relative concentration change profile matrix C and a normalized spectrum profile matrix S T , and then selecting a pure concentration change profile vector c n and a pure spectrum profile vector s n of the first n single analyte; T S3, for the resolved first n component, using the pure concentration change profile vector c n and the pure spectrum profile vector s n T , reconstructing a pure absorbance matrix Dn=c n ◦s n T ; S4, calculating the concentration: calculating the concentration according to the Lambert-Beer law. The application not only inherits the advantages of the Arnon formula, but also can overcome spectral interference to give more accurate quantitative results.

This invention relates to the field of microbial technology, specifically to a xylose-oxidizing achromobacterium and its application in matcha tea cultivation and quality improvement. The xylose-oxidizing achromobacterium provided by this invention... Achromobacter xylosoxidans JHMC Fb2318, with accession number CCTCC NO:M 20251855 and accession date of August 19, 2025, shows that foliar spraying of this strain on tea trees during seedling cultivation and planting under low light and shading conditions can promote root formation and increase the survival rate of cuttings under low light conditions; increase the weight of 100 buds and the length of buds under low light conditions; increase the content of chlorophyll a, chlorophyll b, and total chlorophyll; and decrease the chlorophyll a / b ratio. It also increases the amino acid content and decreases the caffeine content in matcha made from tea trees, demonstrating its potential application in matcha production.

The present application relates to the field of microbial technology, and particularly relates to a rhizosphere basing cupriavidus basellens - 10 and application thereof in dissolving phosphorus and promoting growth. The rhizosphere basing cupriavidus basellens - 10 provided by the present application has a preservation number of GDMCC No. 65501, and the rhizosphere basing cupriavidus basellens - 10 can increase the contents of chlorophyll a, chlorophyll b, carotenoids and total chlorophyll in leaves of cinnamomum chekiangense seedlings, increase the plant height, ground diameter, total fresh weight, root fresh weight, stem fresh weight, leaf fresh weight, total root length and thick root number of the cinnamomum chekiangense seedlings, and promote the accumulation of soluble sugar and effective phosphorus in roots and leaves.

This invention discloses a method and system for detecting microalgae concentration and pigments based on multispectral attenuation inversion. The method includes: establishing a nonlinear light attenuation model, whose inputs are the chlorophyll a content, chlorophyll b content, carotenoid content, and microalgae concentration, and whose output is the corresponding spectral transmittance; presetting bio-realism constraints based on the physiological characteristics of microalgae and physical constraints based on the physical laws of spectral detection; acquiring measured spectral transmittance data of the microalgae sample under different spectra; combining the bio-realism constraints and physical constraints, using a nonlinear optimization algorithm to invert and solve the nonlinear light attenuation model, and calculating the chlorophyll a content, chlorophyll b content, carotenoid content, and microalgae concentration that meet the constraints using the measured spectral transmittance data as the objective. This invention improves the accuracy and bio-reasonableness of microalgae detection through multispectral coupling and constraint optimization.

The invention discloses an application of OsFTL1 and a coding gene thereof in improving protein content and chlorophyll content. The OsFTL1 disclosed by the invention is derived from rice and is a protein as shown in SEQ ID No. 1. Experiments prove that the OsFTL1 and the coding gene thereof can increase the chlorophyll content and the protein content, and under the normal nitrogen condition, the contents of chlorophyll a, chlorophyll b and carotenoid of leaves of the OsFTL1 transgenic plant are higher than those of wild plants; under the condition of low nitrogen, the leaf protein content of the OsFTL1 transgenic plant is obviously higher than that of a wild type; after the plants growing in the field are harvested, the grain protein content of the OsFTL1 transgenic plants is obviously higher than that of the wild plants. The results show that the OsFTL1 and the coding gene thereof can promote nitrogen assimilation, increase pigment synthesis and increase protein content, and have good application prospects.

The invention belongs to the technical field of LEDs, and particularly relates to a plant LED light source capable of obtaining a photosynthetic spectrum matched with leaf vegetables by exciting fluorescent powder through blue light wafers, which comprises a bowl-cup bracket, an LED wafer group arranged in a bowl-cup functional area of the bowl-cup bracket, and fluorescent glue covering the LED wafer group and filling the bowl-cup bracket. The spectrum matching is more accurate, and the photosynthetic bottleneck is broken through: through the design of double blue light bands, the absorption peaks of chlorophyll a and chlorophyll b are adapted respectively, the absorption competition of beta carotenoid and chlorophyll b is avoided, the utilization rates of the three pigments are all increased by 25% or above, and the photosynthetic rate and the nutritional quality are synchronously improved; the optical performance is more balanced, the commodity value is guaranteed, a green light gap is filled up through a customized fluorescent powder formula, collaborative output of the color temperature of about 5000K and the color rendering property Ra larger than or equal to 90 is achieved, and the leaf color difference delta Elt is achieved; the appearance quality is close to the natural growth state, and the commodity rate is increased by 15% or above.

This invention claims protection for a luminescent material for plant lighting and its preparation method. The chemical formula of the luminescent material is BaY. 2(1‑x) Al2Ga3O 12 :xBi 3+ ,yK + Where 0.005≤x≤0.03, 0.01≤y≤0.03. This luminescent material was synthesized via a high-temperature solid-state method with a sintering temperature of 1350℃-1450℃. This method is simple and easy to industrialize. The luminescent material, doped with Bi₂O₃, exhibits both blue and red light emission under ultraviolet wavelength excitation. The emission wavelengths of this luminescent material cover the absorption spectra of chlorophyll a, chlorophyll b, carotenoids, and phytochrome Pr, and its ability to simultaneously provide red and blue light emission has significant application value in plant growth lighting.

Tungsten / molybdate fluorescent materials, used in indoor plant lighting and spectral conversion in silicon-based solar cells, belong to the technical field of fluorescent materials science. The chemical formula is A9M. 2(1‑x‑y) N4O 24 xBi, yR, A is one or more of Sr, Ca, and Ba; M is one or more of La, Gd, and Y; N is one or a combination of W and Mo; O is oxygen; R is one or a combination of Yb and Nd; 0.01≤x≤0.25; 0.00≤y≤0.11. Used for indoor plant lighting and spectral conversion in silicon-based solar cells. Can provide chlorophyll a, chlorophyll b, carotenoids, and photopigment P. R and P FR It absorbs blue light in the 400-500nm range and red light in the 600-700nm range; it also absorbs ultraviolet and visible light and converts it into near-infrared light, thus improving the utilization rate of sunlight.

Produced PAR neither replicates the spectral bandwidth of sunlight at the surface of the earth, nor the absorption spectrum of green plants, nor the absorption spectrum of photosynthetic processes, but—based on discovery that PAR at only a number of unique wavelengths is optimally energy-efficient to promote normal or better plant growth—instead desirably concentrates PAR emissions in a limited number, preferably about nine (9), narrow bands. Narrowband, even extremely narrowband, radiation is preferred at 430 and 662 nanometers wavelength (first and second absorption peaks of chlorophyll A); 453 and 642 nanometers wavelength (first and second absorption peaks of chlorophyll B); and still other wavelengths (only). Preferably more than 50% of the total PAR flux is within a total bandwidth of less than 160 nanometers wavelength in the range between 360 and 760 nanometers wavelength, and more preferably 90% of the PAR flux is within a total bandwidth of less than 80 nanometers wavelength within this range. When the intensity of the PAR flux in these narrow bands is, as is preferred, only but that occurring within the normal solar spectrum, then tremendous energy savings are innately realized in production of the new-spectrum PAR, ranging to ¾ and more from previous PAR. Moreover, the new-spectrum multi-narrow-band PAR is electrically efficiently produced using narrowband-emission LEDs.

The invention relates to the technical field of cigar tobacco processing. The invention provides a method for reducing green content of tobacco leaves by spraying lipoxygenase in an airing process and application of the method, and the lipoxygenase is sprayed on the front side and the back side of the tobacco leaves 2-4 days after the tobacco leaves wither. By analyzing the change influence of parameters such as pigment content, physical characteristics and appearance quality of the aired tobacco leaves sprayed with lipoxygenase, the result shows that the degradation of pigment of the tobacco leaves can be promoted, the appearance quality of the tobacco leaves can be improved, the tension of the tobacco leaves is enhanced, and the thickness, weight and the like of the leaves are reduced by spraying the lipoxygenase in the airing period. Wherein the effect of 400 U / g treatment (T2) is optimal, and the contents of chlorophyll a, chlorophyll b and carotenoid treated by 400 U / g after airing are respectively reduced by 19.35%, 12.27% and 11.72% compared with CK.

The present invention relates to water soluble chlorophyll binding protein (WSCP)-chlorophyll complexes as contrast agents for photoacoustic imaging. Disclosed is the use of a WSCP-chlorophyll complex in the preparation of a contrast agent for use in a method of photoacoustic imaging of a subject. Also disclosed are WSCP-chlorophyll complexes comprising Lepidium seu Pleurotus North, WSCP, and chlorophyll a, bacterial chlorophyll a, and bacterial chlorophyll b. The WSCP-chlorophyll complexes of the present invention exhibit strong near infrared (NIR) absorption, unique and non-overlapping spectral characteristics, and concentration dependent photoacoustic (PA) signal generation. These properties make them suitable as contrast agents for PAIs in various applications, particularly in clinical contexts such as disease detection and monitoring.