Study On The Development Of Citri Grandis Exocarpium Industry In Guangxi Based On The Accumulation Of Effective Components

A total of 18 samples of different ages of Citri grandis Exocarpium in Huazhou city,Luchuan county and Baise city were collected.The quality inspection of medicinal materials was carried out and the total flavonoids,naringin,rhoifolin and naringenin in the samples were determined.The flower drop,the first physiological fruit drop and the leaf were collected,and the content of flavonoids and the antioxidant activity of the extract were determined.Combined with the experimental results and investigation and analysis,this paper provides countermeasures for the development of Citri grandis planting industry in Guangxi.The findings are as follows:(1)The moisture,total ash and acid insoluble ash of 18 samples from 3 producing areas met the requirements of Pharmacopoeia.(2)The content of total flavonoids in different producing areas of Guangxi decreased with the increase of fruit age.The content of naringin decreased with the increase of fruit age,and the content of naringin in different producing areas was different.The content of naring:in in Huazhou producing area decreased from 22.33%in mid-April to 8.38%in mid-June,and decreased from 28.30%in early April to 8.93%in mid-June in Luchuan producing area.The content of of naringin in Baise decreased from 27.36%in mid-April to 10.46%at the end of May.The content of rhoifolin in Baise producing area was much higher than that in traditional producing areas like Huazhou and Luchuan,and the highest content was 1.47%and the lowest content was 0.83%.The content of anthocyanin in Huazhou production area was between 0.3%and 0.4%.The content of naringenin in three producing areas decreased with the increase of fruit age.The content of naringenin in Huazhou producing area was higher than that in Luchuan producing area and Baise producing area.(3)The contents of active components in different parts varied greatly.The contents of total flavonoids,naringin and naringenin in different parts were as follows:first physiological fruit drop>fallling flower>leaf;rhoifolin content:leaf>falling flower>first physiological fruit drop.(4)The extract from various parts of Citri grandis had a strong clearance rate for DPPH,and the clearance rate was 96%for the water extract falling fruit at a certain concentration.It has a certain scavenging effect on hydroxyl radical,and the scavenging rate of hydroxyl radical in the alcohol extract of falling flower is 70.2%.(5)Based on the above research results and the investigation of Citri grandis industry,the following countermeasures are put forward for the development of Citri grandis in Guangxi:Scientific planning of Guangxi Citri grandis production area,and Baise producing area is suitable for planting and developing Citri grandis,which can be popularized and planted in Baise.It is suggested that the harvest time of Citri grandis in different producing areas of Guangxi is different.It is suggested that the harvest time of Citri grandis in Luchuan producing area can be carried out in late April,and that the harvest time of Citri grarndis in Baise producing area is more suitable in the early and middle of May.And Strengthen the development of Citri grandis deep processing products in Guangxi,the flower drop,the first physiological fruit drop and the leaf can be used in antioxidant product research and development,Citri grandis safflower can be used in high-end scented tea and cosmetics research and development.Leaf can be used in animal feed research and development.Standardize orange planting and production,scientific introduction,ecological planting,scientific management.Strengthen the brand of Citri grandis in Guangxi producing area,and establish the brand in Guangxi through the registration of famous brand trademark of high quality Citri grandis in Guangxi producing area,so as to obtain the market recognition.