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公开(公告)号：US20220369657A1
公开(公告)日：2022-11-24
申请号：US17760550
申请日：2020-09-30
Applicant: South China University of Technology
Inventor： Dawen Sun , Junhu Cheng , Yaqi Chen , Zhong Han , Yijie Wang
Abstract: A system for preserving red meat by plasma active water (PAW) vacuum packaging includes a solution mixing tank, a plasma treatment chamber, an atomization spray module, a conveyor bell, a water circulation module, and a vacuum packaging module. The solution mixing tank, the plasma treatment chamber, the atomization spray module, and the water circulation module are sequentially connected through pipes. The atomization sprav module is configured to spray PAW onto the red meat on the conveyor belt, and the vacuum packaging module is configured to vacuum-package the red meat. Utilizing PAW improves the antibacterial ability of vacuum packaging while enhancing the color stability of red meat, greatly extending the shelf life of red meat, thereby preserving red meat in a green and economical way.
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2.发明授权Method for improving, by using power-variable ultrasonic waves, frozen fish fillets treated by means of salt-water immersion process 有权通过使用功率可变的超声波，通过盐水浸渍法处理的冷冻鱼片进行改进的方法公开(公告)号：US09497976B2
公开(公告)日：2016-11-22
申请号：US14780861
申请日：2013-12-20
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Dawen Sun , Fen Hu , Xin'an Zeng , Qijun Wang , Wenhong Gao
IPC: A23B4/09 , A23B4/015 , A22C25/18 , A22C25/02 , A22C25/20 , A22C25/14 , A22C25/17 , A22C25/16 , A23L1/025 , A23L1/36 , A23L3/375 , A23B4/06 , A23L3/30 , A23B4/023 , A23L1/325
CPC classification number: A23B4/015 , A22C25/02 , A22C25/142 , A22C25/145 , A22C25/16 , A22C25/17 , A22C25/18 , A22C25/20 , A23B4/023 , A23B4/06 , A23B4/09 , A23L3/30 , A23L3/375 , A23L5/32 , A23L17/00 , A23L25/00 , A23V2002/00 , Y02A40/946
Abstract: A method for improving frozen fish fillets treated by way of a salt-water immersion process includes the following steps: pretreating raw fish to obtain fish fillets; precooling the fish fillets; stacking the precooled fish fillets to obtain a fish fillet stack; freezing the fish fillet stack by using a salt-water immersion process, and performing power-variable ultrasonic wave treatment; and feeding the fish fillets into a cold storage, and performing freezing storage at minus 18 degrees centigrade. The power-variable ultrasonic wave treatment includes: firstly treating for 5 to 10 min under the power of 800 to 600 W, and then changing the power to 200 to 600 W for treating for 5 to 15 min. The freezing time of fish flesh is shortened, and formed ice crystals are fine and uniform, thereby preventing the damage of the formed ice crystals to cell walls.
Abstract translation: 通过盐水浸渍法处理冷冻鱼片的方法，包括以下步骤：预处理生鱼获得鱼片; 预冷鱼片; 堆叠预冷鱼片以获得鱼片堆叠; 通过使用盐水浸渍工艺冷冻鱼片堆，并进行功率可变的超声波处理; 并将鱼片喂入冷库，并在零下18摄氏度进行冷冻保存。 功率可变超声波处理包括：首先在800〜600W的功率下处理5〜10分钟，然后将功率变化为200〜600W，处理5〜15分钟。 鱼肉的冻结时间缩短，形成冰晶细，均匀，防止形成的冰晶对细胞壁的损伤。
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3.发明申请POMELO PEEL ESSENTIAL OIL EXTRACTION METHOD BY PEEL ICING AND BREAKING 有权POMELO PEEL基础油提取方法由PEEL ICING和断裂公开(公告)号：US20150073161A1
公开(公告)日：2015-03-12
申请号：US14395611
申请日：2012-12-18
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Dawen Sun , Xin'an Zeng , Zhong Han , Zhongyue Xu , Rong Fan
IPC: C11B9/02
Abstract: A method of ice-crystal wall-breaking extraction of the pomelo peel essencial oil, including: first selecting a fresh pomelo, peeling off the outmost oil cell layer with a peeler, and collecting the cortex that is 1.5-2.5 mm thick; slowly freezing the pomelo peel oil cell layer at −15° C. to −30° C. to form ice crystal; breaking the pomelo peel ice crystal with a breaker; thawing the broken ice crystal, and then squeezing with a screw squeezer to obtain a squeezed mixed liquid; adding 3-4% by mass of the table salt to the squeezed mixed liquid, and standing to stratify at reduced pressure, thereby obtaining an oil-water mixture; distilling the mixed liquid at reduced pressure, and collecting the distillate to obtain an oil-water mixture that undergoes natural stratification; discarding the water layer, thereby obtaining the pomelo peel essential oil.
Abstract translation: 柚皮精油的冰晶断裂提取方法，包括：首先选择新鲜的柚子，用剥皮机剥离最外层的油细胞层，收集1.5-2.5毫米厚的皮质; 将柚皮油细胞层在-15℃下缓慢冷冻至-30℃以形成冰晶; 用断路器打破柚皮冰晶; 解冻破碎的冰晶，然后用螺杆挤压机挤压得到挤压的混合液体; 将3-4质量％的餐盐加入挤压的混合液中，静置以减压分层，得到油 - 水混合物; 在减压下蒸馏混合液体，并收集馏出物以获得经历自然分层的油水混合物; 丢弃水层，从而获得柚皮精油。
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公开(公告)号：US11478108B2
公开(公告)日：2022-10-25
申请号：US17053693
申请日：2018-10-25
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Dawen Sun , Zhong Han , Xucong Yu , Hongbin Pu , Zhiwei Zhu , Qijun Wang
IPC: A47J37/06
Abstract: An intelligent identification cooking system of an oven including an image acquisition system, an image analysis and processing system, and a temperature measurement and monitoring system. The image acquisition system is connected to the image analysis and processing system and an intelligent menu control system is connected to the image analysis and processing system and the temperature measurement and monitoring system respectively. Through computer vision and identification technology and temperature sensing technology, parameters such as the type, thickness, size, fattiness and temperature are identified and automatically matched and calibrated to a cooking menu. A control program is output to a control terminal and executed.
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公开(公告)号：US20180017324A1
公开(公告)日：2018-01-18
申请号：US15548054
申请日：2015-12-29
Applicant: South China University of Technology
Inventor： Dawen Sun , Lina Cheng , Zhiwei Zhu , Xin'an Zeng , Qijun Wang , Zi Zhang
Abstract: The present invention discloses a method for freeze-drying drug liposomes powder assisted by a variable-frequency alternating-current electric field, which includes the following steps: (1) preparing a drug-liposome suspension sample; (2) dehydrating the sample under a 1-10 kHz, 3-10 kV high-voltage alternating current; (3) freezing and drying the sample treated in step (2) at −20° C. to −40° C., under a 10-25 kHz, 0.2-1 kV high-voltage alternating current, until completion of the freezing process; and (4) heating and drying the sample in a vacuum until completion of sublimation and desorption, and obtaining the drug liposomes freeze-dried powder. The present invention not only greatly shortens a freezing and drying time, but also controls a size of nuclei and ice crystals, further ensuring a quality of the freeze-dried powder.
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Patent Agency Ranking
公开(公告)号：US09200238B2
公开(公告)日：2015-12-01
申请号：US14395611
申请日：2012-12-18
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Dawen Sun , Xin'an Zeng , Zhong Han , Zhongyue Xu , Rong Fan
Abstract: A method of ice-crystal wall-breaking extraction of the pomelo peel essencial oil, including: first selecting a fresh pomelo, peeling off the outmost oil cell layer with a peeler, and collecting the cortex that is 1.5-2.5 mm thick; slowly freezing the pomelo peel oil cell layer at −15° C. to −30° C. to form ice crystal; breaking the pomelo peel ice crystal with a breaker; thawing the broken ice crystal, and then squeezing with a screw squeezer to obtain a squeezed mixed liquid; adding 3-4% by mass of the table salt to the squeezed mixed liquid, and standing to stratify at reduced pressure, thereby obtaining an oil-water mixture; distilling the mixed liquid at reduced pressure, and collecting the distillate to obtain an oil-water mixture that undergoes natural stratification; discarding the water layer, thereby obtaining the pomelo peel essential oil.
Abstract translation: 柚皮精油的冰晶断裂提取方法，包括：首先选择新鲜的柚子，用剥皮机剥离最外层的油细胞层，收集1.5-2.5毫米厚的皮质; 将柚皮油细胞层在-15℃下缓慢冷冻至-30℃以形成冰晶; 用断路器打破柚皮冰晶; 解冻破碎的冰晶，然后用螺杆挤压机挤压得到挤压的混合液体; 将3-4质量％的餐盐加入到挤压的混合液中，静置以减压分层，得到油 - 水混合物; 在减压下蒸馏混合液体，并收集馏出物以获得经历自然分层的油水混合物; 丢弃水层，从而获得柚皮精油。
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公开(公告)号：US11448592B2
公开(公告)日：2022-09-20
申请号：US16321042
申请日：2017-09-20
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Dawen Sun , Weiwei Cheng , Hongbin Pu , Zhiwei Zhu , Zhong Han
IPC: G01N21/359 , G01N33/12 , G01N21/59 , G01N21/3563
Abstract: The invention discloses a method for rapidly predicting freezer storage time of frozen pork based on reflectance ratio of two near-infrared bands. Firstly, the near-infrared spectra information of the frozen pork is obtained by a near-infrared spectrometer, and the near-infrared spectra are analyzed to obtain center values of bands centered on 1500 nm, 1350 nm and 1890 nm characteristic peaks. The ratio thereof is treated as a eigenvector, which is substituted into the characteristic exponential function based on the eigenvector and freezer storage time to calculate the freezer storage time of frozen pork. By near-infrared spectroscopy technology, the invention directly detects the freezer storage time of pork in a frozen state, significantly reduces the time required by the conventional method, and has the advantages of being fast and non-destructive.
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公开(公告)号：US11330824B2
公开(公告)日：2022-05-17
申请号：US16324586
申请日：2017-11-23
Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
Inventor： Dawen Sun , Tingtiao Pan , Hongbin Pu , Zhiwei Zhu , Zhong Han
Abstract: Disclosed herein is a multi-temperature-region ice-temperature fresh keeping storehouse and a fresh keeping method for bergamot pears that includes a precooling region, a feeding and discharging channel, a cooling region, an ice temperature detection device, a grading device, a conveyer belt control device, an automatic storage device, and a temperature rise and fall buffering channel. The cooling region includes four freezers, with temperatures ranging from 0° C.-−3° C. The four freezers are connected level by level according to a temperature reduction rule. The present disclosure implements multi-temperature-region graded storage of bergamot pears according to the value of an ice point temperature of the bergamot pears, so that they are always stored close to the ice point temperature without freezing, thereby preventing freeze injury, and prolonging shelf life.
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9.发明申请公开(公告)号：US20190335775A1
公开(公告)日：2019-11-07
申请号：US16083938
申请日：2016-12-08
Applicant: South China University of Technology
Inventor： Dawen Sun , Xinwei Wu , Zhiwei Zhu
Abstract: A method for the preservation of fresh plants by vacuum pre-cooling synchronously combined with modified atmosphere technique includes: (1) screening field-picked fresh plants, and selecting individuals with uniform size, consistent maturity, and no obvious defects; (2) placing the screened individuals in a vacuum pre-cooler for pre-cooling; (3) after the plants are pre-cooled to the final temperature, the device automatically shuts down the refrigerator and vacuum pump, and the pre-configured mixed gas is introduced from the intake air inlet into the vacuum chamber for re-pressing; and (4) taking the re-pressed fresh plants out of the pre-cooler, and performing modified atmosphere packaging and refrigerating. A specific mixed gas can be filled during the vacuum pre-cooling and re-pressure stages, and the re-pressure process after pre-cooling is closely integrated with the modified atmosphere technique to reduce the respiration metabolism of the plant to a suitable low level, significantly prolonging the shelf life of the product.
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公开(公告)号：US10415881B2
公开(公告)日：2019-09-17
申请号：US15548054
申请日：2015-12-29
Applicant: South China University of Technology
Inventor： Dawen Sun , Lina Cheng , Zhiwei Zhu , Xin'an Zeng , Qijun Wang , Zi Zhang
Abstract: The present invention discloses a method for freeze-drying drug liposomes powder assisted by a variable-frequency alternating-current electric field, which includes the following steps: (1) preparing a drug-liposome suspension sample; (2) dehydrating the sample under a 1-10 kHz, 3-10 kV high-voltage alternating current; (3) freezing and drying the sample treated in step (2) at −20° C. to −40° C., under a 10-25 kHz, 0.2-1 kV high-voltage alternating current, until completion of the freezing process; and (4) heating and drying the sample in a vacuum until completion of sublimation and desorption, and obtaining the drug liposomes freeze-dried powder. The present invention not only greatly shortens a freezing and drying time, but also controls a size of nuclei and ice crystals, further ensuring a quality of the freeze-dried powder.
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