SU750780A1

SU750780A1 - Method of of storage of tea leaves

Info

Publication number: SU750780A1
Application number: SU792729562A
Authority: SU
Inventors: Р.Г. Мелкадзе; К.П. Гулуа
Original assignee: Всесоюзный Научно-Исследовательский Институт Чайной Промышленности
Priority date: 1979-02-16
Filing date: 1979-02-16
Publication date: 1982-11-23

Description

1one

Изобретение относитс к способам хранени растительного сырь и может бьпъ использовано на фабриках первичной переработки чайного листа.The invention relates to methods of storing vegetable raw materials and can be used in factories for the primary processing of tea leaves.

Известен способ хранени свежесобранного чайного листа, предусматривающий продувание воздуха сквозь массу листа 1, 2 и L3.A known method of storing freshly harvested tea leaves involves blowing air through the mass of sheets 1, 2 and L3.

Недостатком известного способа хранени чайного листа вл етс значительна потер сухих веществ за счет усилени дькани листа в св зи с nocTosm- ным притоком кислорода воздуха. Кроме того, недостатками данного способа вл ютс частичное высушивание нежных частей хран щегос сырь и незнаиитель- ность срока хранени .A disadvantage of the known method of storing tea leaves is the significant loss of dry substances due to the increased leaf tissue in connection with the nocTosm inflow of air oxygen. In addition, the disadvantages of this method are the partial drying of the delicate parts of the stored raw materials and the negligence of the storage time.

Известен также способ хранени чайного листа Б контейнере, заполнезшом инертным газом (углекислый газ, азот к т.п.) 43, L5} L6J.There is also known a method of storing tea leaf B container, filled with inert gas (carbon dioxide, nitrogen, etc.) 43, L5} L6J.

Наиболее близким по технической сущности и достигаемому результату к изобретению вл етс способ хранени чайНбгй ЛИСТА перед его переработкой в полуфабрикат черного байхового ча , предусматривающий обработку его газообразным азотом f 7 .The closest in technical essence and the achieved result to the invention is the method of storing the tea sheet before processing it into a semi-finished black baikhov tea, which involves processing it with gaseous nitrogen f 7.

Цель изобретени - увеличение срока хранени чайного листа.The purpose of the invention is to increase the shelf life of the tea leaf.

Это достигаетс тем, что обработку газообразным азотом осуществл ют продуванием его через массу чнйнс о листа при скорости потока 0,01-0,1 м/с в течение 6О-1ОО ч, осуществл при этом зав5шиванне листа.This is achieved in that the treatment with nitrogen gas is carried out by blowing it through the mass of the sheet at a flow rate of 0.01-0.1 m / s for 6 0 -1 0 h, while carrying out the curvature of the sheet.

Продувание газообразного азота полностью прекращает дыхание- писта и предотвращает развитие ферментативных окислительных процессов, что максимально сохран ет исходный химический состав чайного листа. Снижение влаги в листе идет медленно и дос-рггает нормы влаж ности зав ленного чайного листа только через 6О-10О ч с начала продувани .Purging nitrogen gas completely stops breathing the pistus and prevents the development of enzymatic oxidative processes, which preserves the original chemical composition of the tea leaf as much as possible. The reduction of moisture in the leaf goes slowly and reaches the moisture norms of the tea leaves only 6O-10 hours after the start of blowing.

Claims

An example of the method. A tea leaf is placed in a container adapted for storing plant material with forced ventilation, and nitrogen gas is supplied, which has a temperature at a flow rate of 0, O5 m / s. Blowing is carried out for 75 h, after which the blowing is stopped and the sheet is fed for twisting, mine the filling process. Then the sheet is processed by the current technology. Using the proposed method of storing tea leaves provides, in comparison with existing methods, lengthening the shelf life, preserving the original chemical composition of the leaf, improving the quality of finished tea products, reducing the duration of the processing cycle. The duration of storage depends on the temperature and rate of nitrogen gas supplied. Formula of water and the method of storing the tea leaf before processing it into a semi-finished black baikhov tea, which involves treating it with gaseous nitrogen, which is done by blowing it with gaseous nitrogen to increase the shelf life. through the leaccy of the tea leaf at the flow rate O, O1-O, 1 m / s for 6–10 O h, while filling the sheet. Sources of information taken into account during the examination 1. USSR author's certificate No. 6556О4, cl. B 65B 85/34, 1977.

2. USSR author's certificate No. ... on application No. 2704490 / 28-13, cl. And 23 F 3/00, 1978 - the invention is not registered in the State Register.

3. Japanese Patent No. 50-39156, cl. 37 A 1, published. 1975.

4.Food Sci avid TesIiS, 197O, No. 11, p. 502-506.

5.D. Glagolev From the fields to the counter. - Science and life, with. 24. 6. instead of cold. - Knowledge, 1966, No. 9, p. 57. 7. Patent. Great Britain No. 692779, cl. 5 (i) C, pub. 1953 (prototype).