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Physical and chemical properties of flash Ligans(2)

Acid base isomerization

Many lignans, due to the existence of stereoisomerism in the saturated ring structure, are prone to Flax lignans and form isomers after acid-base interaction. In addition, dicyclohexyllignans often have symmetrical structures. Under the action of acid, the bond between the oxygen atom and the benzyl carbon atom on the furan ring is easy to crack, and the configuration changes when it is closed again. Some lignans can also cause structural rearrangement when they encounter mineral acid. [Sweet Potato Powder] [specific example 2]

Functional group reaction

Plant Extract Lignans often have alcohol hydroxyl, phenolic hydroxyl, methoxy, methylene dioxy, carboxyl and lactone groups, so they also have the properties and reactions of these functional groups. Ferric chloride or diazotization reagent can be used for the detection of phenolic hydroxyl group, Labat reagent (Capsicum Oleoresin concentrated sulfuric acid reagent) or ecgrine reagent (chromotropic acid concentrated sulfuric acid reagent) can be used for the detection of methylene dioxy.

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Physical and chemical properties of flash Ligans(1)

character

Most of them are white crystals, generally non-volatile, Mangiferin and cannot be distilled with steam. Only a few lignans can be sublimated by heating at atmospheric pressure.

solubility

Free Capsicum Oleoresin are lipophilic, generally insoluble in water, but easily soluble in lipophilic organic solvents and ethanol.

Lignans with phenolic hydroxyl groups are also soluble in alkaline aqueous solutions. When lignans combine with sugar to form glycosides, the Ginkgo Biloba Extract and water solubility of lignans increase.

Optical activity

Bitter Melon Extract usually have multiple chiral carbon atoms or chiral centers, so most of them have optical activity. The physiological activity of lignans is often related to the configuration of chiral carbon. Therefore, attention should be paid to the operating conditions in the extraction process to avoid structural changes of the extracted components.

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Extraction and separation of flash lignans

extract

Caffeic Acid are lipophilic and can be dissolved in low polar solvents such as ether. They can be directly extracted with low polarity organic solvents or extracted with ethanol (or acetone). After concentration, the extract solution is dissolved in petroleum ether or ether, and then dissolved for many times to obtain the pure product. [Note: FlaxSeed Lignans often coexists with resin in plants, and solvent treatment is easy to resin, not suitable for separation. ]

Flax lignans glycosides have strong hydrophilicity and can be extracted according to the extraction method of glycosides. Due to the relatively large aglycone molecules, medium and low polarity solvents should be used. Lignans with lactone structure can also be separated from other unsaponifiable lipophilic components by their alkali soluble properties. However, attention should be paid to the isomerization of Gardenia Yellow, especially those with optical activity.

separate

The separation of lignans can be carried out by solvent extraction, fractional precipitation, recrystallization and other methods due to the different properties of the extracted lignans. Further separation also needs to rely on chromatographic separation. Adsorption column chromatography and distribution column chromatography are widely used in the separation of lignans.

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Nutritional characteristics of alfalfa powder(1)

  1. Conventional components and effective energy value

The quality of alfalfa meal depends on the proportion of Alfalfa Powder stem to leaf.

The results showed that the leaf of air dried alfalfa contained 25.5% ± 2.6% crude protein, 14.3% ± 2.5% crude fiber, 11.09 ± 1.46 MJ / kg digestible energy (Mangiferin) and (6.44 ± 0.87) MJ / kg respectively. According to the principle of international feed classification, it belongs to protein feed. However, the crude fiber content in the air dried alfalfa stem is as high as 41.3% ± 1.8%, the crude protein content is only 10.4% ± 0.9%, the digestible energy (Gardenia Yellow) is (4.18 ± 0.38) MJ / kg, and the metabolic energy (chicken) is (0.57 ± 0.03) MJ / kg. It can be seen that the loss of leaf in alfalfa should be paid attention to during alfalfa harvesting and storage, and the proportion of alfalfa leaf in alfalfa should be ensured as far as possible The key to high quality alfalfa meal.

In the past, many Flax lignans have studied the variation law of nutrient components in Alfalfa at different growth stages. It is generally believed that the quality of Alfalfa at the initial flowering stage is better, but according to the cooperative research between the Institute of animal husbandry, Chinese Academy of Agricultural Sciences and Shaanxi animal husbandry and Veterinary Institute, the crude protein content of alfalfa meal at budding stage, initial flowering stage and full flowering stage is 20.0%, 18.2% and 16.9%, respectively, while the crude fiber content is 26.1%, 26.5% and 28.1%, respectively It is difficult to judge the quality of alfalfa meal during growing period.

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Nutritional characteristics of alfalfa powder(2)

  1. Amino acid content of alfalfa

According to the statistical data of China Feed Database, the whole alfalfa meal harvested at full flowering stage after artificial drying contains 0.74% – 0.78% Gardenia Yellow, and the total essential amino acid content is relatively balanced. It is a kind of forage powder feed material to adjust the palatability and physical and Ginkgo Biloba Extract properties of compound feed.

  • Mineral and trace element content

The contents of calcium and phosphorus in leaves of Bitter Melon Extract were 150% and 50% higher than those in stems, respectively, and decreased with the growth period. Calcium is deficient in phosphorus, but not phytate.

Flax lignans is rich in iron and selenium, which is 5-10 times higher than that of livestock and poultry. It is a good source of iron and selenium. However, copper, zinc and manganese are all in the range of livestock and poultry demand or relatively deficient, and should be added as appropriate.

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Nutritional characteristics of alfalfa powder(3)

  1. Prediction of nutrients and the best harvest time

The nutrient composition of Mangiferin is directly affected by the ratio of stem to leaf and growth period. Therefore, according to the actual measured value of alfalfa leaf and alfalfa stem at different growth stages and the dry matter ratio of stem and leaf, Bitter Melon Extract is a good method to simulate and calculate the nutrient content of the whole plant in the aboveground part of alfalfa, which is a good method to avoid the sample error caused by the loss of leaves during sampling. The contents of nutrients in the stems and leaves of alfalfa were different in different growth stages. The peak value of crude protein content in leaves was at the initial Mangifera Indica Extract and full flowering stage, while the crude fiber content in leaves was contrary to this rule; the crude protein content of stem and leaf was the highest at full bud stage, and decreased with the growth period, and the peak value of crude fiber content in stem was in full flowering stage. The quality of alfalfa meal was the best at the initial flowering stage, followed by the full flowering stage, the second at the full bud stage, and the worst at the pod setting stage. Flax lignans can be seen that the best cutting time of Alfalfa should be combined with the ratio of stem to leaf and its nutrient content, and it is ideal to select the first flowering stage and the full flowering stage. Under the condition of less sample quantity and extensive sampling method, the simulation prediction is more practical than the actual sampling.

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Morphological characteristics of Cistanche tubulosa extract

Tall herbs, 40-160 cm tall, mostly underground.

The stem is unbranched or has 2-4 branches from the Cistanche tubulosa extract part, with a diameter of 5-10 (- 15) cm at the lower part, and gradually slender upward, with a diameter of 2-5 cm.

Leaves broadly ovate or triangular ovate, 0.5-1.5 cm long and 1-2 cm wide, densely distributed in the lower part of the stem, sparsely and narrowed in the upper part, lanceolate or narrowly lanceolate, Synephrine Hcl and 0.5-1 cm wide, glabrous on both sides. Inflorescence spicate, 15-50 cm long, 4-7 cm in diameter; lower part or all bracts of inflorescence are longer, equal to or slightly longer than corolla, ovate lanceolate, lanceolate or linear lanceolate, together with bracteoles and corolla lobes, sparsely pilose or subglabrous outside and margin; bracteoles 2, ovate lanceolate or lanceolate, as long as or slightly longer than Flax lignans.

Calyx campanulate, 1-1.5 cm long, apex 5-lobed, lobes suborbicular, 2.5-4 mm long, 3-5 mm wide. Corolla tubular bell shaped, 3-4 cm long, 5-lobed tip, lobes nearly semicircular, 4-6 mm long, 0.6-1 cm wide, margin often slightly curled, color variation, yellowish white or lavender, often brown after drying. There are 4 stamens, filaments attached 5-6 mm from the base of tube, 1.5-2.5 cm long, base wrinkled villous, anther long ovate, 3.5-4.5 mm long, densely villous, base with cuspidate.

Ovary elliptic, Capsicum Oleoresin, with nectary at base, style slightly longer than stamen, glabrous, stigma subglobose. Capsule ovoid, 1.5-2.7 cm long, 1.3-1.4 cm in diameter, often with persistent style at nape, 2-petal dehiscence. Seeds elliptic or subovate, ca. 0.6-1 mm long, outer reticulate, glossy. The flowering period is from May to June, and the fruit period is from June to August.

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Functions of Cistanche tubulosa extract

Impotence

According to modern scientific research, Cistanche deserticola can play a role similar to testosterone, promoting sexual desire and Purple Sweet Potato Powder. Cistanche deserticola can stimulate sperm production and semen secretion, and promote sexual desire by filling the seminal vesicle. Cistanche also showed overall physical strength. The herb can inhibit the action of gonadotropin like (Mangiferin) without affecting the normal balance of testosterone in the body. According to traditional Chinese medicine, it can be used as an Beet Root Powder and is shown to be used for impotence. Cistanche deserticola also showed the effect of premature ejaculation. Cistanche deserticola can help other herbs play a role by helping to regulate the neuroendocrine system of male reproductive system and maintain normal hormonal balance.

Immune support

The water-soluble components of Cistanche deserticola extract can enhance immune function in body fluid and cells of mice, Gardenia Yellow the weight of spleen and thymus, and increase the conversion rate of lymphocytes. Cistanche deserticola also showed anti-aging function, which could significantly increase the activity of SOD in red blood cells of mice.

constipation

Cistanche deserticola is often used as a cathartic to treat constipation caused by intestinal dryness. This effect has been confirmed by enhancing intestinal motility in mice.

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Components of alfalfa powder

According to the classification of agricultural crops, Alfalfa Powder can be divided into three systems: purple, yellow and hybrid.

Among them, alfalfa is the main cultivated variety of alfalfa, mainly distributed in the Yellow River Basin, with Shaanxi, Ginkgo Biloba Extract, Shanxi and Xinjiang as the largest cultivation area, which is the main production area of Alfalfa in China. At present, it is widely cultivated in North China, Northeast China and Inner Mongolia. It is also planted in Bitter Melon Extract, Hubei and other provinces. In Guangdong, Guangxi, Fujian and other places, it is difficult to survive the summer due to high temperature and rainy weather. Alfalfa Planted in Zhejiang, Hunan, Barley Grass Powder and other provinces has blossomed or flowed but not solid.

Quality standard of alfalfa meal for feed: agricultural industry standard of the people’s Republic of China NT / T 140-89

Level 1, level 2, level 3

Crude protein ≥ 18.0 ≥ 16.0 ≥ 14.0

Crude fiber < 25.0 < 27.5 < 30.0

Crude ash content < 12.5 < 12.5 < 12.5

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Differences in extraction difficulty of Cistanche tubulosa extract

Cistanche tubulosa (Cistanche Tubulosa Extract) is easy to be extracted according to different purity because of its low sugar content and high content of active components. The contents of echinacoside and verbascoside (ergosteroside) in fresh wood are generally in the range of 1.5g-4g, Therefore, Flax lignans is widely used in pharmaceutical industry, such as Shenbao tablets, Hongmao medicinal wine, Jinjiu, etc., and Cistanche tubulosa extract is the main raw material for export;

For example, the effective content of Herba Cistanche deserticola is relatively low, and the content of echinacoside and verbascoside (Mixed Tocopherols Oil) is generally about 0.3g in 100g, so it is difficult to extract, and N-Acetylneuraminic Acid is mainly sold in traditional pharmacies in the form of slices.

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