CN108095181B - Method for baking Honghuadajinyuan rainy and short-day tobacco leaves - Google Patents

Abstract

The invention discloses a method for baking a Honghuadajinyuan flue-cured tobacco variety rainy little-sunlight tobacco leaves, which controls the conditions in a baking room in the baking process: firstly, adjusting the dry bulb temperature of 42 ℃ and the wet bulb temperature of 38-39 ℃ and humidifying for 12-20h to ensure that the leaves are dehydrated by 25%, the tobacco leaves are softened and collapsed, and the branches are softened, then adjusting the dry bulb temperature of 37-38 ℃, the wet bulb temperature of 37-38 ℃, the moisture retention and yellowing are carried out for 24-32h, the leaves are 8-9 yellow, adjusting the dry bulb temperature of 42 ℃, the wet bulb temperature of 35-36 ℃ and 12-14h, the yellow sheet is green and the leaf is hooked with the tip, and finally adjusting the dry bulb temperature of 45 ℃, the wet bulb temperature of 36 ℃ and 22-25h, the yellow sheet is yellow and the tip is hooked and curled; the invention accelerates the yellowing of the tobacco leaves in the baking process, shortens the yellowing time and the color fixing time, increases the orange tobacco proportion after the tobacco leaves are baked in a short day, increases the proportion of the upper and middle tobacco leaves, obviously reduces the proportion of mixed color and grain tobacco strips, has obviously better economic benefit test process of the baked tobacco, and simultaneously ensures the baking quality of normal tobacco leaves.

Description

Method for baking Honghuadajinyuan rainy and short-day tobacco leaves

Technical Field

The invention belongs to the technical field of tobacco production and baking, and particularly relates to a baking method of Honghuadajinyuan rainy few-day-exposure tobacco leaves.

Background

In recent years, due to the influence of ecological climate factors of each tobacco area, cultivation technology is not implemented in place, fresh tobacco leaves which are poor in quality and difficult to bake are formed, baking quality is easily reduced due to improper baking technology, income of tobacco growers is affected, and the effect of fixing and displaying quality needs to be achieved through a scientific baking method.

The rainy and light-irradiation-poor tobacco leaves refer to tobacco leaves which grow to be mature in a rainy and light-irradiation environment for a long time, are mostly middle and lower tobacco leaves, the content of the tobacco leaves is not full, the accumulation of dry matters is relatively deficient, the leaves are large and thin, the tissue structure is loose, and the water content is high; in rainy days, the tobacco leaves are not easy to show yellow leaf surface characteristics in the field, the tobacco leaves are not resistant to baking in the baking process, grains are easy to bake and black, steaming slices are easy to generate due to centralized moisture removal in a fixed color period, and the color of the baked tobacco leaves is slightly light.

The pigment content of the safflower Honghuadajinyuan tobacco leaves is higher than that of other varieties, and the tobacco leaves have slow yellowing and fast water loss in the baking process and are easy to cause the occurrence of baked green tobacco; the problem of insufficient yellowing of tobacco leaves can be solved to a certain extent by prolonging the yellowing time, but the prolonged yellowing time easily causes excessive consumption of nutrient substances of the tobacco leaves and black lees; the problem of yellowing and color fixation of tobacco leaves can be solved by high-temperature quick baking, but the content of the tobacco leaves after baking is not fully converted, and the aroma quality and the aroma quantity are poor, and the internal quality is poor.

Disclosure of Invention

The invention aims to provide a dense baking method for improving the baking quality of safflower Honghuadajinyuan rainy and sunny tobacco leaves aiming at the defects in the prior art. The tobacco leaves with much rain and little sunshine are ensured to remove more water in the yellowing process, have good yellowing and proper water loss, lay a foundation for fixing color, and in the baking process, proper dehydration is matched with a moisture retention process to be beneficial to accelerating the yellowing and the loss of leaf vein water and improve the baking quality, namely, the dehydration yellow-inducing process.

The purpose of the invention is realized by the following technical scheme: a bulk curing method for improving the curing quality of rainy and little-sunshine tobacco leaves comprises the following steps of controlling fire and cooling to control the conditions in a curing barn:

(1) adjusting the dry bulb temperature to 42 ℃ and the wet bulb temperature to 38-39 ℃, adjusting the humidity for 12-20h, dehydrating 25% of leaves, softening and collapsing tobacco leaves and softening branches;

(2) regulating the dry bulb temperature to 37-38 ℃, the wet bulb temperature to 37-38 ℃, keeping moisture and yellowing for 24-32h, and enabling the leaves to be 8-9 yellow;

(3) regulating the dry bulb temperature to 42 ℃, the wet bulb temperature to 35-36 ℃, 12-14h, the yellow sheet, the green muscle and the leaf tip;

(4) adjusting the dry bulb temperature to 45 ℃, the wet bulb temperature to 36 ℃, the time to 22-25h, the yellow piece to be yellow rib, and the tip hooked and curled edge.

Preferably, in the step (1), the fire-controlling and temperature-reducing operation is carried out for 2-3 times, and the dry bulb temperature is adjusted to 40 ℃ and the wet bulb temperature is adjusted to 36-37 ℃ each time.

By adopting the method for baking the Hongda cured tobacco variety with much rain and little sunshine, the tobacco yellowing is accelerated, the yellowing time is shortened and the color fixing time is shortened in the baking process; after the few-sunshine tobacco leaves are baked, the orange tobacco proportion is increased, the upper and middle tobacco leaf proportion is increased, the mixed color and grain tobacco leaf proportion is obviously reduced, the economic benefit test process of the baked tobacco is obviously better, and the baking quality of normal tobacco leaves can be ensured.

Detailed Description

The following will clearly and completely describe the technical solutions in the embodiments, and it is obvious that the described embodiments are only a part of examples of the present invention, and not all examples. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

The steps and effects of the method T1 for baking the Hongda cured tobacco variety rainy little-sunlight tobacco leaves and the conventional method CK for baking the Hongda cured tobacco are compared as shown in the following table:

obviously, by adopting the method for baking the Hongda cured tobacco variety rainy and short-day tobacco leaves, the yellowing of the tobacco leaves is accelerated in the baking process, the yellowing time is shortened, and the color fixing time is shortened; after the few-sunshine tobacco leaves are baked, the orange tobacco proportion is increased, the upper and middle tobacco leaf proportion is increased, the mixed color and grain tobacco leaf proportion is obviously reduced, the economic benefit test process of the baked tobacco is obviously better, and the baking quality of normal tobacco leaves can be ensured.

In 2016, the vinasse pieces and the steamed pieces are serious in the process of baking the safflower large golden elements, rainy and little sunshine tobacco leaves in Midu county of Dalizhou province of Yunnan province, the color of the baked tobacco leaves is extremely light, the experiment is repeated for 3 times by adopting the baking scheme of the invention compared with the local conventional baking, and the result shows that:

1) compared with the conventional baking method CK, the baking method T1 of the invention has the advantages of accelerated tobacco leaf yellowing, shortened yellowing time and shortened color fixing time in the baking process, and is shown in Table 1.

TABLE 1 Multi-rain and few-sun tobacco leaf curing time for different curing processes

2) Compared with the conventional method CK, the baking method T1 provided by the invention has the advantages that the orange tobacco ratio is increased after the few-day tobacco leaves are baked, the upper and middle tobacco leaves are increased, the mixed color and the grain tobacco leaf ratio are obviously reduced, the economic benefit test process of the baked tobacco is obviously better, and the baking quality of normal tobacco leaves can be ensured, which is shown in tables 2 and 3.

TABLE 2 Low-sun lower leaf roasting quality statistics for different roasting processes

TABLE 3 statistics of the baking quality of the leaves in the middle of the little sun for different baking processes

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (1)

1. A method capable of effectively improving the curing quality of Honghuadajinyuan flue-cured tobacco variety with much rain and little sunshine is characterized in that the conditions in a curing barn are controlled according to the following steps in the curing process:

(1) adjusting the dry bulb temperature to 42 ℃ and the wet bulb temperature to 38-39 ℃, adjusting the humidity for 12-20h to ensure that the leaves lose water by 25 percent, the tobacco leaves soften and collapse and the branches soften, and performing fire control and temperature reduction for 2-3 times during the period, wherein the dry bulb temperature is adjusted to 40 ℃ and the wet bulb temperature is adjusted to 36-37 ℃ each time;

(2) regulating the dry bulb temperature to 37-38 ℃ and the wet bulb temperature to 37-38 ℃, preserving moisture and yellowing for 24-32h, and enabling the leaves to be 8-9 yellow;

(3) regulating the dry bulb temperature to 42 ℃, the wet bulb temperature to 35-36 ℃, 12-14h, the yellow sheet, the green muscle and the leaf tip;

(4) adjusting the dry bulb temperature to 45 ℃, the wet bulb temperature to 36 ℃, the time to 22-25h, the yellow piece to be yellow rib, and the tip hooked and curled edge.